Home / 15,337.20-21,159.78-10,035.12

Finding the Fourth Proportional to 15,337.20, 21,159.78 and 10,035.12

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Solution

The fourth proportional to 15,337.20, 21,159.78 and 10,035.12 is: 13,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.20 : 21,159.78 = 10,035.12 : x
  2. Step 2: Convert to fraction form
    15,337.20/21,159.78 = 10,035.12/x
  3. Step 3: Cross multiply
    15,337.20x = 21,159.78 × 10,035.12
  4. Step 4: Simplify right side
    15,337.20x = 212,340,931.47
  5. Step 5: Solve for x
    x = 212,340,931.47/15,337.20
  6. Step 6: Final answer
    x = 13,844.83

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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.