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Finding the Fourth Proportional to 8,581.04, 12,875.16 and 3,651.74

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Solution

The fourth proportional to 8,581.04, 12,875.16 and 3,651.74 is: 5,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.04 : 12,875.16 = 3,651.74 : x
  2. Step 2: Convert to fraction form
    8,581.04/12,875.16 = 3,651.74/x
  3. Step 3: Cross multiply
    8,581.04x = 12,875.16 × 3,651.74
  4. Step 4: Simplify right side
    8,581.04x = 47,016,736.78
  5. Step 5: Solve for x
    x = 47,016,736.78/8,581.04
  6. Step 6: Final answer
    x = 5,479.14

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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.