Home / 9,082.20-13,607.10-7,429.80

Finding the Fourth Proportional to 9,082.20, 13,607.10 and 7,429.80

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Solution

The fourth proportional to 9,082.20, 13,607.10 and 7,429.80 is: 11,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,082.20 : 13,607.10 = 7,429.80 : x
  2. Step 2: Convert to fraction form
    9,082.20/13,607.10 = 7,429.80/x
  3. Step 3: Cross multiply
    9,082.20x = 13,607.10 × 7,429.80
  4. Step 4: Simplify right side
    9,082.20x = 101,098,031.58
  5. Step 5: Solve for x
    x = 101,098,031.58/9,082.20
  6. Step 6: Final answer
    x = 11,131.45

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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.