Home / 13,221.76-19,793.68-11,581.51

Finding the Fourth Proportional to 13,221.76, 19,793.68 and 11,581.51

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Solution

The fourth proportional to 13,221.76, 19,793.68 and 11,581.51 is: 17,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.76 : 19,793.68 = 11,581.51 : x
  2. Step 2: Convert to fraction form
    13,221.76/19,793.68 = 11,581.51/x
  3. Step 3: Cross multiply
    13,221.76x = 19,793.68 × 11,581.51
  4. Step 4: Simplify right side
    13,221.76x = 229,240,702.86
  5. Step 5: Solve for x
    x = 229,240,702.86/13,221.76
  6. Step 6: Final answer
    x = 17,338.14

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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.