Home / 10,125.31-15,168.53-5,729.71

Finding the Fourth Proportional to 10,125.31, 15,168.53 and 5,729.71

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Solution

The fourth proportional to 10,125.31, 15,168.53 and 5,729.71 is: 8,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.31 : 15,168.53 = 5,729.71 : x
  2. Step 2: Convert to fraction form
    10,125.31/15,168.53 = 5,729.71/x
  3. Step 3: Cross multiply
    10,125.31x = 15,168.53 × 5,729.71
  4. Step 4: Simplify right side
    10,125.31x = 86,911,249.38
  5. Step 5: Solve for x
    x = 86,911,249.38/10,125.31
  6. Step 6: Final answer
    x = 8,583.56

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1.5x scale

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.