Home / 12,432.60-18,650.10-3,670.02

Finding the Fourth Proportional to 12,432.60, 18,650.10 and 3,670.02

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Solution

The fourth proportional to 12,432.60, 18,650.10 and 3,670.02 is: 5,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.60 : 18,650.10 = 3,670.02 : x
  2. Step 2: Convert to fraction form
    12,432.60/18,650.10 = 3,670.02/x
  3. Step 3: Cross multiply
    12,432.60x = 18,650.10 × 3,670.02
  4. Step 4: Simplify right side
    12,432.60x = 68,446,240.00
  5. Step 5: Solve for x
    x = 68,446,240.00/12,432.60
  6. Step 6: Final answer
    x = 5,505.38

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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.