Home / 12,221.17-18,328.96-3,456.76

Finding the Fourth Proportional to 12,221.17, 18,328.96 and 3,456.76

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Solution

The fourth proportional to 12,221.17, 18,328.96 and 3,456.76 is: 5,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.17 : 18,328.96 = 3,456.76 : x
  2. Step 2: Convert to fraction form
    12,221.17/18,328.96 = 3,456.76/x
  3. Step 3: Cross multiply
    12,221.17x = 18,328.96 × 3,456.76
  4. Step 4: Simplify right side
    12,221.17x = 63,358,815.77
  5. Step 5: Solve for x
    x = 63,358,815.77/12,221.17
  6. Step 6: Final answer
    x = 5,184.35

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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.