Home / 12,531.42-18,788.22-6,286.92

Finding the Fourth Proportional to 12,531.42, 18,788.22 and 6,286.92

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Solution

The fourth proportional to 12,531.42, 18,788.22 and 6,286.92 is: 9,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.42 : 18,788.22 = 6,286.92 : x
  2. Step 2: Convert to fraction form
    12,531.42/18,788.22 = 6,286.92/x
  3. Step 3: Cross multiply
    12,531.42x = 18,788.22 × 6,286.92
  4. Step 4: Simplify right side
    12,531.42x = 118,120,036.08
  5. Step 5: Solve for x
    x = 118,120,036.08/12,531.42
  6. Step 6: Final answer
    x = 9,425.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.