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Finding the Fourth Proportional to 18,502.04, 27,737.86 and 8,636.44

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Solution

The fourth proportional to 18,502.04, 27,737.86 and 8,636.44 is: 12,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.04 : 27,737.86 = 8,636.44 : x
  2. Step 2: Convert to fraction form
    18,502.04/27,737.86 = 8,636.44/x
  3. Step 3: Cross multiply
    18,502.04x = 27,737.86 × 8,636.44
  4. Step 4: Simplify right side
    18,502.04x = 239,556,363.62
  5. Step 5: Solve for x
    x = 239,556,363.62/18,502.04
  6. Step 6: Final answer
    x = 12,947.56

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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.