Home / 10,564.38-15,842.28-3,986.97

Finding the Fourth Proportional to 10,564.38, 15,842.28 and 3,986.97

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Solution

The fourth proportional to 10,564.38, 15,842.28 and 3,986.97 is: 5,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,564.38 : 15,842.28 = 3,986.97 : x
  2. Step 2: Convert to fraction form
    10,564.38/15,842.28 = 3,986.97/x
  3. Step 3: Cross multiply
    10,564.38x = 15,842.28 × 3,986.97
  4. Step 4: Simplify right side
    10,564.38x = 63,162,695.09
  5. Step 5: Solve for x
    x = 63,162,695.09/10,564.38
  6. Step 6: Final answer
    x = 5,978.84

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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.