Home / 15,955.12-23,932.68-7,179.78

Finding the Fourth Proportional to 15,955.12, 23,932.68 and 7,179.78

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Solution

The fourth proportional to 15,955.12, 23,932.68 and 7,179.78 is: 10,769.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.12 : 23,932.68 = 7,179.78 : x
  2. Step 2: Convert to fraction form
    15,955.12/23,932.68 = 7,179.78/x
  3. Step 3: Cross multiply
    15,955.12x = 23,932.68 × 7,179.78
  4. Step 4: Simplify right side
    15,955.12x = 171,831,221.65
  5. Step 5: Solve for x
    x = 171,831,221.65/15,955.12
  6. Step 6: Final answer
    x = 10,769.66

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Similar ratio
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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.