Home / 16,072.40-24,076.20-9,138.80

Finding the Fourth Proportional to 16,072.40, 24,076.20 and 9,138.80

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Solution

The fourth proportional to 16,072.40, 24,076.20 and 9,138.80 is: 13,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,072.40 : 24,076.20 = 9,138.80 : x
  2. Step 2: Convert to fraction form
    16,072.40/24,076.20 = 9,138.80/x
  3. Step 3: Cross multiply
    16,072.40x = 24,076.20 × 9,138.80
  4. Step 4: Simplify right side
    16,072.40x = 220,027,576.56
  5. Step 5: Solve for x
    x = 220,027,576.56/16,072.40
  6. Step 6: Final answer
    x = 13,689.78

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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.