Home / 10,345.38-15,517.89-2,554.20

Finding the Fourth Proportional to 10,345.38, 15,517.89 and 2,554.20

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Solution

The fourth proportional to 10,345.38, 15,517.89 and 2,554.20 is: 3,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.38 : 15,517.89 = 2,554.20 : x
  2. Step 2: Convert to fraction form
    10,345.38/15,517.89 = 2,554.20/x
  3. Step 3: Cross multiply
    10,345.38x = 15,517.89 × 2,554.20
  4. Step 4: Simplify right side
    10,345.38x = 39,635,794.64
  5. Step 5: Solve for x
    x = 39,635,794.64/10,345.38
  6. Step 6: Final answer
    x = 3,831.26

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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.