Home / 18,117.43-24,990.55-13,089.04

Finding the Fourth Proportional to 18,117.43, 24,990.55 and 13,089.04

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Solution

The fourth proportional to 18,117.43, 24,990.55 and 13,089.04 is: 18,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.43 : 24,990.55 = 13,089.04 : x
  2. Step 2: Convert to fraction form
    18,117.43/24,990.55 = 13,089.04/x
  3. Step 3: Cross multiply
    18,117.43x = 24,990.55 × 13,089.04
  4. Step 4: Simplify right side
    18,117.43x = 327,102,308.57
  5. Step 5: Solve for x
    x = 327,102,308.57/18,117.43
  6. Step 6: Final answer
    x = 18,054.56

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Half scale
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Double scale
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Similar ratio
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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.