Home / 18,221.04-25,142.76-11,504.16

Finding the Fourth Proportional to 18,221.04, 25,142.76 and 11,504.16

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Solution

The fourth proportional to 18,221.04, 25,142.76 and 11,504.16 is: 15,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.04 : 25,142.76 = 11,504.16 : x
  2. Step 2: Convert to fraction form
    18,221.04/25,142.76 = 11,504.16/x
  3. Step 3: Cross multiply
    18,221.04x = 25,142.76 × 11,504.16
  4. Step 4: Simplify right side
    18,221.04x = 289,246,333.88
  5. Step 5: Solve for x
    x = 289,246,333.88/18,221.04
  6. Step 6: Final answer
    x = 15,874.30

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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.