Home / 12,772.20-19,158.30-4,007.10

Finding the Fourth Proportional to 12,772.20, 19,158.30 and 4,007.10

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Solution

The fourth proportional to 12,772.20, 19,158.30 and 4,007.10 is: 6,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.20 : 19,158.30 = 4,007.10 : x
  2. Step 2: Convert to fraction form
    12,772.20/19,158.30 = 4,007.10/x
  3. Step 3: Cross multiply
    12,772.20x = 19,158.30 × 4,007.10
  4. Step 4: Simplify right side
    12,772.20x = 76,769,223.93
  5. Step 5: Solve for x
    x = 76,769,223.93/12,772.20
  6. Step 6: Final answer
    x = 6,010.65

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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.