Home / 15,039.24-20,753.90-8,324.72

Finding the Fourth Proportional to 15,039.24, 20,753.90 and 8,324.72

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Solution

The fourth proportional to 15,039.24, 20,753.90 and 8,324.72 is: 11,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.24 : 20,753.90 = 8,324.72 : x
  2. Step 2: Convert to fraction form
    15,039.24/20,753.90 = 8,324.72/x
  3. Step 3: Cross multiply
    15,039.24x = 20,753.90 × 8,324.72
  4. Step 4: Simplify right side
    15,039.24x = 172,770,482.95
  5. Step 5: Solve for x
    x = 172,770,482.95/15,039.24
  6. Step 6: Final answer
    x = 11,487.98

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Half scale
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Double scale
Find fourth proportional to 15,040.24, 20,755.28 and 8,325.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.