Home / 11,157.56-15,417.90-8,008.76

Finding the Fourth Proportional to 11,157.56, 15,417.90 and 8,008.76

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Solution

The fourth proportional to 11,157.56, 15,417.90 and 8,008.76 is: 11,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.56 : 15,417.90 = 8,008.76 : x
  2. Step 2: Convert to fraction form
    11,157.56/15,417.90 = 8,008.76/x
  3. Step 3: Cross multiply
    11,157.56x = 15,417.90 × 8,008.76
  4. Step 4: Simplify right side
    11,157.56x = 123,478,260.80
  5. Step 5: Solve for x
    x = 123,478,260.80/11,157.56
  6. Step 6: Final answer
    x = 11,066.78

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Find fourth proportional to 5,578.78, 7,708.95 and 4,004.38
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.