Home / 8,339.13-12,508.69-3,954.20

Finding the Fourth Proportional to 8,339.13, 12,508.69 and 3,954.20

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Solution

The fourth proportional to 8,339.13, 12,508.69 and 3,954.20 is: 5,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.13 : 12,508.69 = 3,954.20 : x
  2. Step 2: Convert to fraction form
    8,339.13/12,508.69 = 3,954.20/x
  3. Step 3: Cross multiply
    8,339.13x = 12,508.69 × 3,954.20
  4. Step 4: Simplify right side
    8,339.13x = 49,461,789.57
  5. Step 5: Solve for x
    x = 49,461,789.57/8,339.13
  6. Step 6: Final answer
    x = 5,931.29

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Similar ratio
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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.