Home / 15,439.67-21,306.60-8,366.08

Finding the Fourth Proportional to 15,439.67, 21,306.60 and 8,366.08

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Solution

The fourth proportional to 15,439.67, 21,306.60 and 8,366.08 is: 11,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.67 : 21,306.60 = 8,366.08 : x
  2. Step 2: Convert to fraction form
    15,439.67/21,306.60 = 8,366.08/x
  3. Step 3: Cross multiply
    15,439.67x = 21,306.60 × 8,366.08
  4. Step 4: Simplify right side
    15,439.67x = 178,252,720.13
  5. Step 5: Solve for x
    x = 178,252,720.13/15,439.67
  6. Step 6: Final answer
    x = 11,545.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.