Home / 12,282.39-18,390.24-9,635.85

Finding the Fourth Proportional to 12,282.39, 18,390.24 and 9,635.85

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Solution

The fourth proportional to 12,282.39, 18,390.24 and 9,635.85 is: 14,427.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.39 : 18,390.24 = 9,635.85 : x
  2. Step 2: Convert to fraction form
    12,282.39/18,390.24 = 9,635.85/x
  3. Step 3: Cross multiply
    12,282.39x = 18,390.24 × 9,635.85
  4. Step 4: Simplify right side
    12,282.39x = 177,205,594.10
  5. Step 5: Solve for x
    x = 177,205,594.10/12,282.39
  6. Step 6: Final answer
    x = 14,427.61

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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.