Home / 8,139.39-12,209.08-2,594.43

Finding the Fourth Proportional to 8,139.39, 12,209.08 and 2,594.43

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Solution

The fourth proportional to 8,139.39, 12,209.08 and 2,594.43 is: 3,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.39 : 12,209.08 = 2,594.43 : x
  2. Step 2: Convert to fraction form
    8,139.39/12,209.08 = 2,594.43/x
  3. Step 3: Cross multiply
    8,139.39x = 12,209.08 × 2,594.43
  4. Step 4: Simplify right side
    8,139.39x = 31,675,603.42
  5. Step 5: Solve for x
    x = 31,675,603.42/8,139.39
  6. Step 6: Final answer
    x = 3,891.65

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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.