Home / 12,511.25-18,742.17-9,394.91

Finding the Fourth Proportional to 12,511.25, 18,742.17 and 9,394.91

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Solution

The fourth proportional to 12,511.25, 18,742.17 and 9,394.91 is: 14,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.25 : 18,742.17 = 9,394.91 : x
  2. Step 2: Convert to fraction form
    12,511.25/18,742.17 = 9,394.91/x
  3. Step 3: Cross multiply
    12,511.25x = 18,742.17 × 9,394.91
  4. Step 4: Simplify right side
    12,511.25x = 176,081,000.35
  5. Step 5: Solve for x
    x = 176,081,000.35/12,511.25
  6. Step 6: Final answer
    x = 14,073.81

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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.