Home / 10,077.78-15,116.67-5,489.94

Finding the Fourth Proportional to 10,077.78, 15,116.67 and 5,489.94

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Solution

The fourth proportional to 10,077.78, 15,116.67 and 5,489.94 is: 8,234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,077.78 : 15,116.67 = 5,489.94 : x
  2. Step 2: Convert to fraction form
    10,077.78/15,116.67 = 5,489.94/x
  3. Step 3: Cross multiply
    10,077.78x = 15,116.67 × 5,489.94
  4. Step 4: Simplify right side
    10,077.78x = 82,989,611.30
  5. Step 5: Solve for x
    x = 82,989,611.30/10,077.78
  6. Step 6: Final answer
    x = 8,234.91

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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.