Home / 10,126.78-15,140.25-8,584.04

Finding the Fourth Proportional to 10,126.78, 15,140.25 and 8,584.04

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Solution

The fourth proportional to 10,126.78, 15,140.25 and 8,584.04 is: 12,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.78 : 15,140.25 = 8,584.04 : x
  2. Step 2: Convert to fraction form
    10,126.78/15,140.25 = 8,584.04/x
  3. Step 3: Cross multiply
    10,126.78x = 15,140.25 × 8,584.04
  4. Step 4: Simplify right side
    10,126.78x = 129,964,549.46
  5. Step 5: Solve for x
    x = 129,964,549.46/10,126.78
  6. Step 6: Final answer
    x = 12,833.75

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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.