Home / 10,103.60-15,148.20-3,861.20

Finding the Fourth Proportional to 10,103.60, 15,148.20 and 3,861.20

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Solution

The fourth proportional to 10,103.60, 15,148.20 and 3,861.20 is: 5,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103.60 : 15,148.20 = 3,861.20 : x
  2. Step 2: Convert to fraction form
    10,103.60/15,148.20 = 3,861.20/x
  3. Step 3: Cross multiply
    10,103.60x = 15,148.20 × 3,861.20
  4. Step 4: Simplify right side
    10,103.60x = 58,490,229.84
  5. Step 5: Solve for x
    x = 58,490,229.84/10,103.60
  6. Step 6: Final answer
    x = 5,789.05

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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.