Home / 15,764.20-23,644.70-5,375.80

Finding the Fourth Proportional to 15,764.20, 23,644.70 and 5,375.80

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Solution

The fourth proportional to 15,764.20, 23,644.70 and 5,375.80 is: 8,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764.20 : 23,644.70 = 5,375.80 : x
  2. Step 2: Convert to fraction form
    15,764.20/23,644.70 = 5,375.80/x
  3. Step 3: Cross multiply
    15,764.20x = 23,644.70 × 5,375.80
  4. Step 4: Simplify right side
    15,764.20x = 127,109,178.26
  5. Step 5: Solve for x
    x = 127,109,178.26/15,764.20
  6. Step 6: Final answer
    x = 8,063.15

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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.