Home / 15,540.30-23,310.45-9,999.90

Finding the Fourth Proportional to 15,540.30, 23,310.45 and 9,999.90

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Solution

The fourth proportional to 15,540.30, 23,310.45 and 9,999.90 is: 14,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.30 : 23,310.45 = 9,999.90 : x
  2. Step 2: Convert to fraction form
    15,540.30/23,310.45 = 9,999.90/x
  3. Step 3: Cross multiply
    15,540.30x = 23,310.45 × 9,999.90
  4. Step 4: Simplify right side
    15,540.30x = 233,102,168.96
  5. Step 5: Solve for x
    x = 233,102,168.96/15,540.30
  6. Step 6: Final answer
    x = 14,999.85

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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.