Home / 18,291.96-25,244.77-13,191.69

Finding the Fourth Proportional to 18,291.96, 25,244.77 and 13,191.69

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Solution

The fourth proportional to 18,291.96, 25,244.77 and 13,191.69 is: 18,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.96 : 25,244.77 = 13,191.69 : x
  2. Step 2: Convert to fraction form
    18,291.96/25,244.77 = 13,191.69/x
  3. Step 3: Cross multiply
    18,291.96x = 25,244.77 × 13,191.69
  4. Step 4: Simplify right side
    18,291.96x = 333,021,020.76
  5. Step 5: Solve for x
    x = 333,021,020.76/18,291.96
  6. Step 6: Final answer
    x = 18,205.87

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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.