Home / 18,120.75-25,006.68-10,572.27

Finding the Fourth Proportional to 18,120.75, 25,006.68 and 10,572.27

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Solution

The fourth proportional to 18,120.75, 25,006.68 and 10,572.27 is: 14,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.75 : 25,006.68 = 10,572.27 : x
  2. Step 2: Convert to fraction form
    18,120.75/25,006.68 = 10,572.27/x
  3. Step 3: Cross multiply
    18,120.75x = 25,006.68 × 10,572.27
  4. Step 4: Simplify right side
    18,120.75x = 264,377,372.76
  5. Step 5: Solve for x
    x = 264,377,372.76/18,120.75
  6. Step 6: Final answer
    x = 14,589.76

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.