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Finding the Fourth Proportional to 10,397.68, 15,593.10 and 5,200

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Solution

The fourth proportional to 10,397.68, 15,593.10 and 5,200 is: 7,798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,397.68 : 15,593.10 = 5,200 : x
  2. Step 2: Convert to fraction form
    10,397.68/15,593.10 = 5,200/x
  3. Step 3: Cross multiply
    10,397.68x = 15,593.10 × 5,200
  4. Step 4: Simplify right side
    10,397.68x = 81,084,120
  5. Step 5: Solve for x
    x = 81,084,120/10,397.68
  6. Step 6: Final answer
    x = 7,798.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.