Home / 12,251.58-18,358.94-9,116.88

Finding the Fourth Proportional to 12,251.58, 18,358.94 and 9,116.88

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Solution

The fourth proportional to 12,251.58, 18,358.94 and 9,116.88 is: 13,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.58 : 18,358.94 = 9,116.88 : x
  2. Step 2: Convert to fraction form
    12,251.58/18,358.94 = 9,116.88/x
  3. Step 3: Cross multiply
    12,251.58x = 18,358.94 × 9,116.88
  4. Step 4: Simplify right side
    12,251.58x = 167,376,252.91
  5. Step 5: Solve for x
    x = 167,376,252.91/12,251.58
  6. Step 6: Final answer
    x = 13,661.61

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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.