Home / 12,789.50-19,184.85-5,000.13

Finding the Fourth Proportional to 12,789.50, 19,184.85 and 5,000.13

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Solution

The fourth proportional to 12,789.50, 19,184.85 and 5,000.13 is: 7,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.50 : 19,184.85 = 5,000.13 : x
  2. Step 2: Convert to fraction form
    12,789.50/19,184.85 = 5,000.13/x
  3. Step 3: Cross multiply
    12,789.50x = 19,184.85 × 5,000.13
  4. Step 4: Simplify right side
    12,789.50x = 95,926,744.03
  5. Step 5: Solve for x
    x = 95,926,744.03/12,789.50
  6. Step 6: Final answer
    x = 7,500.43

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Double scale
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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.