Home / 12,248.20-18,372.30-7,315.30

Finding the Fourth Proportional to 12,248.20, 18,372.30 and 7,315.30

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Solution

The fourth proportional to 12,248.20, 18,372.30 and 7,315.30 is: 10,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.20 : 18,372.30 = 7,315.30 : x
  2. Step 2: Convert to fraction form
    12,248.20/18,372.30 = 7,315.30/x
  3. Step 3: Cross multiply
    12,248.20x = 18,372.30 × 7,315.30
  4. Step 4: Simplify right side
    12,248.20x = 134,398,886.19
  5. Step 5: Solve for x
    x = 134,398,886.19/12,248.20
  6. Step 6: Final answer
    x = 10,972.95

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Similar ratio
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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.