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Finding the Fourth Proportional to 8,487.29, 12,731.51 and 2,247.22

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Solution

The fourth proportional to 8,487.29, 12,731.51 and 2,247.22 is: 3,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.29 : 12,731.51 = 2,247.22 : x
  2. Step 2: Convert to fraction form
    8,487.29/12,731.51 = 2,247.22/x
  3. Step 3: Cross multiply
    8,487.29x = 12,731.51 × 2,247.22
  4. Step 4: Simplify right side
    8,487.29x = 28,610,565.45
  5. Step 5: Solve for x
    x = 28,610,565.45/8,487.29
  6. Step 6: Final answer
    x = 3,370.99

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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.