Home / 15,553.80-23,330.70-5,165.55

Finding the Fourth Proportional to 15,553.80, 23,330.70 and 5,165.55

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Solution

The fourth proportional to 15,553.80, 23,330.70 and 5,165.55 is: 7,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.80 : 23,330.70 = 5,165.55 : x
  2. Step 2: Convert to fraction form
    15,553.80/23,330.70 = 5,165.55/x
  3. Step 3: Cross multiply
    15,553.80x = 23,330.70 × 5,165.55
  4. Step 4: Simplify right side
    15,553.80x = 120,515,897.39
  5. Step 5: Solve for x
    x = 120,515,897.39/15,553.80
  6. Step 6: Final answer
    x = 7,748.33

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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.