Home / 12,834.70-19,251.78-5,909.20

Finding the Fourth Proportional to 12,834.70, 19,251.78 and 5,909.20

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Solution

The fourth proportional to 12,834.70, 19,251.78 and 5,909.20 is: 8,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.70 : 19,251.78 = 5,909.20 : x
  2. Step 2: Convert to fraction form
    12,834.70/19,251.78 = 5,909.20/x
  3. Step 3: Cross multiply
    12,834.70x = 19,251.78 × 5,909.20
  4. Step 4: Simplify right side
    12,834.70x = 113,762,618.38
  5. Step 5: Solve for x
    x = 113,762,618.38/12,834.70
  6. Step 6: Final answer
    x = 8,863.68

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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.