Home / 15,517.67-21,414.83-8,444.55

Finding the Fourth Proportional to 15,517.67, 21,414.83 and 8,444.55

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Solution

The fourth proportional to 15,517.67, 21,414.83 and 8,444.55 is: 11,653.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.67 : 21,414.83 = 8,444.55 : x
  2. Step 2: Convert to fraction form
    15,517.67/21,414.83 = 8,444.55/x
  3. Step 3: Cross multiply
    15,517.67x = 21,414.83 × 8,444.55
  4. Step 4: Simplify right side
    15,517.67x = 180,838,516.71
  5. Step 5: Solve for x
    x = 180,838,516.71/15,517.67
  6. Step 6: Final answer
    x = 11,653.72

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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.