Home / 8,320.02-12,475.17-3,126.30

Finding the Fourth Proportional to 8,320.02, 12,475.17 and 3,126.30

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Solution

The fourth proportional to 8,320.02, 12,475.17 and 3,126.30 is: 4,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.02 : 12,475.17 = 3,126.30 : x
  2. Step 2: Convert to fraction form
    8,320.02/12,475.17 = 3,126.30/x
  3. Step 3: Cross multiply
    8,320.02x = 12,475.17 × 3,126.30
  4. Step 4: Simplify right side
    8,320.02x = 39,001,123.97
  5. Step 5: Solve for x
    x = 39,001,123.97/8,320.02
  6. Step 6: Final answer
    x = 4,687.62

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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.