Home / 12,460.92-17,197.10-7,157.45

Finding the Fourth Proportional to 12,460.92, 17,197.10 and 7,157.45

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Solution

The fourth proportional to 12,460.92, 17,197.10 and 7,157.45 is: 9,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.92 : 17,197.10 = 7,157.45 : x
  2. Step 2: Convert to fraction form
    12,460.92/17,197.10 = 7,157.45/x
  3. Step 3: Cross multiply
    12,460.92x = 17,197.10 × 7,157.45
  4. Step 4: Simplify right side
    12,460.92x = 123,087,261.62
  5. Step 5: Solve for x
    x = 123,087,261.62/12,460.92
  6. Step 6: Final answer
    x = 9,877.86

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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.