Home / 18,311.36-25,272.24-13,292.12

Finding the Fourth Proportional to 18,311.36, 25,272.24 and 13,292.12

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Solution

The fourth proportional to 18,311.36, 25,272.24 and 13,292.12 is: 18,344.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.36 : 25,272.24 = 13,292.12 : x
  2. Step 2: Convert to fraction form
    18,311.36/25,272.24 = 13,292.12/x
  3. Step 3: Cross multiply
    18,311.36x = 25,272.24 × 13,292.12
  4. Step 4: Simplify right side
    18,311.36x = 335,921,646.75
  5. Step 5: Solve for x
    x = 335,921,646.75/18,311.36
  6. Step 6: Final answer
    x = 18,344.99

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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.