Home / 10,513.68-15,759.72-3,935.28

Finding the Fourth Proportional to 10,513.68, 15,759.72 and 3,935.28

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Solution

The fourth proportional to 10,513.68, 15,759.72 and 3,935.28 is: 5,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.68 : 15,759.72 = 3,935.28 : x
  2. Step 2: Convert to fraction form
    10,513.68/15,759.72 = 3,935.28/x
  3. Step 3: Cross multiply
    10,513.68x = 15,759.72 × 3,935.28
  4. Step 4: Simplify right side
    10,513.68x = 62,018,910.92
  5. Step 5: Solve for x
    x = 62,018,910.92/10,513.68
  6. Step 6: Final answer
    x = 5,898.88

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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.