Home / 13,250.76-18,278.46-8,274.12

Finding the Fourth Proportional to 13,250.76, 18,278.46 and 8,274.12

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Solution

The fourth proportional to 13,250.76, 18,278.46 and 8,274.12 is: 11,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.76 : 18,278.46 = 8,274.12 : x
  2. Step 2: Convert to fraction form
    13,250.76/18,278.46 = 8,274.12/x
  3. Step 3: Cross multiply
    13,250.76x = 18,278.46 × 8,274.12
  4. Step 4: Simplify right side
    13,250.76x = 151,238,171.46
  5. Step 5: Solve for x
    x = 151,238,171.46/13,250.76
  6. Step 6: Final answer
    x = 11,413.55

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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.