Home / 15,227.80-22,784.26-8,991.20

Finding the Fourth Proportional to 15,227.80, 22,784.26 and 8,991.20

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Solution

The fourth proportional to 15,227.80, 22,784.26 and 8,991.20 is: 13,452.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.80 : 22,784.26 = 8,991.20 : x
  2. Step 2: Convert to fraction form
    15,227.80/22,784.26 = 8,991.20/x
  3. Step 3: Cross multiply
    15,227.80x = 22,784.26 × 8,991.20
  4. Step 4: Simplify right side
    15,227.80x = 204,857,838.51
  5. Step 5: Solve for x
    x = 204,857,838.51/15,227.80
  6. Step 6: Final answer
    x = 13,452.88

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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.