Home / 15,905.85-23,861.52-5,375.94

Finding the Fourth Proportional to 15,905.85, 23,861.52 and 5,375.94

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Solution

The fourth proportional to 15,905.85, 23,861.52 and 5,375.94 is: 8,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.85 : 23,861.52 = 5,375.94 : x
  2. Step 2: Convert to fraction form
    15,905.85/23,861.52 = 5,375.94/x
  3. Step 3: Cross multiply
    15,905.85x = 23,861.52 × 5,375.94
  4. Step 4: Simplify right side
    15,905.85x = 128,278,099.83
  5. Step 5: Solve for x
    x = 128,278,099.83/15,905.85
  6. Step 6: Final answer
    x = 8,064.84

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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.