Home / 16,320-24,405.24-12,162.90

Finding the Fourth Proportional to 16,320, 24,405.24 and 12,162.90

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Solution

The fourth proportional to 16,320, 24,405.24 and 12,162.90 is: 18,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,320 : 24,405.24 = 12,162.90 : x
  2. Step 2: Convert to fraction form
    16,320/24,405.24 = 12,162.90/x
  3. Step 3: Cross multiply
    16,320x = 24,405.24 × 12,162.90
  4. Step 4: Simplify right side
    16,320x = 296,838,493.60
  5. Step 5: Solve for x
    x = 296,838,493.60/16,320
  6. Step 6: Final answer
    x = 18,188.63

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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.