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Finding the Fourth Proportional to 22,769.46, 34,154.49 and 7,978.79

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Solution

The fourth proportional to 22,769.46, 34,154.49 and 7,978.79 is: 11,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,769.46 : 34,154.49 = 7,978.79 : x
  2. Step 2: Convert to fraction form
    22,769.46/34,154.49 = 7,978.79/x
  3. Step 3: Cross multiply
    22,769.46x = 34,154.49 × 7,978.79
  4. Step 4: Simplify right side
    22,769.46x = 272,511,332.49
  5. Step 5: Solve for x
    x = 272,511,332.49/22,769.46
  6. Step 6: Final answer
    x = 11,968.28

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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.