Home / 13,221.74-19,832.68-4,456.73

Finding the Fourth Proportional to 13,221.74, 19,832.68 and 4,456.73

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Solution

The fourth proportional to 13,221.74, 19,832.68 and 4,456.73 is: 6,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.74 : 19,832.68 = 4,456.73 : x
  2. Step 2: Convert to fraction form
    13,221.74/19,832.68 = 4,456.73/x
  3. Step 3: Cross multiply
    13,221.74x = 19,832.68 × 4,456.73
  4. Step 4: Simplify right side
    13,221.74x = 88,388,938.38
  5. Step 5: Solve for x
    x = 88,388,938.38/13,221.74
  6. Step 6: Final answer
    x = 6,685.12

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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.