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Finding the Fourth Proportional to 15,002.46, 20,696.50 and 8,713.62

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Solution

The fourth proportional to 15,002.46, 20,696.50 and 8,713.62 is: 12,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.46 : 20,696.50 = 8,713.62 : x
  2. Step 2: Convert to fraction form
    15,002.46/20,696.50 = 8,713.62/x
  3. Step 3: Cross multiply
    15,002.46x = 20,696.50 × 8,713.62
  4. Step 4: Simplify right side
    15,002.46x = 180,341,436.33
  5. Step 5: Solve for x
    x = 180,341,436.33/15,002.46
  6. Step 6: Final answer
    x = 12,020.79

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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.