Home / 13,269.39-18,304.16-8,292.75

Finding the Fourth Proportional to 13,269.39, 18,304.16 and 8,292.75

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Solution

The fourth proportional to 13,269.39, 18,304.16 and 8,292.75 is: 11,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.39 : 18,304.16 = 8,292.75 : x
  2. Step 2: Convert to fraction form
    13,269.39/18,304.16 = 8,292.75/x
  3. Step 3: Cross multiply
    13,269.39x = 18,304.16 × 8,292.75
  4. Step 4: Simplify right side
    13,269.39x = 151,791,781.38
  5. Step 5: Solve for x
    x = 151,791,781.38/13,269.39
  6. Step 6: Final answer
    x = 11,439.24

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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.