Home / 15,488.92-21,358.38-11,008

Finding the Fourth Proportional to 15,488.92, 21,358.38 and 11,008

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Solution

The fourth proportional to 15,488.92, 21,358.38 and 11,008 is: 15,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.92 : 21,358.38 = 11,008 : x
  2. Step 2: Convert to fraction form
    15,488.92/21,358.38 = 11,008/x
  3. Step 3: Cross multiply
    15,488.92x = 21,358.38 × 11,008
  4. Step 4: Simplify right side
    15,488.92x = 235,113,047.04
  5. Step 5: Solve for x
    x = 235,113,047.04/15,488.92
  6. Step 6: Final answer
    x = 15,179.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.