Home / 11,156.14-15,397.47-7,182.22

Finding the Fourth Proportional to 11,156.14, 15,397.47 and 7,182.22

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Solution

The fourth proportional to 11,156.14, 15,397.47 and 7,182.22 is: 9,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.14 : 15,397.47 = 7,182.22 : x
  2. Step 2: Convert to fraction form
    11,156.14/15,397.47 = 7,182.22/x
  3. Step 3: Cross multiply
    11,156.14x = 15,397.47 × 7,182.22
  4. Step 4: Simplify right side
    11,156.14x = 110,588,016.98
  5. Step 5: Solve for x
    x = 110,588,016.98/11,156.14
  6. Step 6: Final answer
    x = 9,912.75

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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.