Home / 8,581.60-12,863.76-3,031.48

Finding the Fourth Proportional to 8,581.60, 12,863.76 and 3,031.48

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Solution

The fourth proportional to 8,581.60, 12,863.76 and 3,031.48 is: 4,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.60 : 12,863.76 = 3,031.48 : x
  2. Step 2: Convert to fraction form
    8,581.60/12,863.76 = 3,031.48/x
  3. Step 3: Cross multiply
    8,581.60x = 12,863.76 × 3,031.48
  4. Step 4: Simplify right side
    8,581.60x = 38,996,231.16
  5. Step 5: Solve for x
    x = 38,996,231.16/8,581.60
  6. Step 6: Final answer
    x = 4,544.17

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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.