Home / 13,251.60-18,322.20-11,591.10

Finding the Fourth Proportional to 13,251.60, 18,322.20 and 11,591.10

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Solution

The fourth proportional to 13,251.60, 18,322.20 and 11,591.10 is: 16,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.60 : 18,322.20 = 11,591.10 : x
  2. Step 2: Convert to fraction form
    13,251.60/18,322.20 = 11,591.10/x
  3. Step 3: Cross multiply
    13,251.60x = 18,322.20 × 11,591.10
  4. Step 4: Simplify right side
    13,251.60x = 212,374,452.42
  5. Step 5: Solve for x
    x = 212,374,452.42/13,251.60
  6. Step 6: Final answer
    x = 16,026.33

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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.