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Finding the Fourth Proportional to 18,737.44, 28,107.10 and 6,256.96

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Solution

The fourth proportional to 18,737.44, 28,107.10 and 6,256.96 is: 9,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.44 : 28,107.10 = 6,256.96 : x
  2. Step 2: Convert to fraction form
    18,737.44/28,107.10 = 6,256.96/x
  3. Step 3: Cross multiply
    18,737.44x = 28,107.10 × 6,256.96
  4. Step 4: Simplify right side
    18,737.44x = 175,865,000.42
  5. Step 5: Solve for x
    x = 175,865,000.42/18,737.44
  6. Step 6: Final answer
    x = 9,385.75

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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.