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Finding the Fourth Proportional to 8,053.40, 12,082.20 and 3,123.20

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Solution

The fourth proportional to 8,053.40, 12,082.20 and 3,123.20 is: 4,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,053.40 : 12,082.20 = 3,123.20 : x
  2. Step 2: Convert to fraction form
    8,053.40/12,082.20 = 3,123.20/x
  3. Step 3: Cross multiply
    8,053.40x = 12,082.20 × 3,123.20
  4. Step 4: Simplify right side
    8,053.40x = 37,735,127.04
  5. Step 5: Solve for x
    x = 37,735,127.04/8,053.40
  6. Step 6: Final answer
    x = 4,685.61

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1.5x scale

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.