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Finding the Fourth Proportional to 12,552.80, 17,324.80 and 7,247.20

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Solution

The fourth proportional to 12,552.80, 17,324.80 and 7,247.20 is: 10,002.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.80 : 17,324.80 = 7,247.20 : x
  2. Step 2: Convert to fraction form
    12,552.80/17,324.80 = 7,247.20/x
  3. Step 3: Cross multiply
    12,552.80x = 17,324.80 × 7,247.20
  4. Step 4: Simplify right side
    12,552.80x = 125,556,290.56
  5. Step 5: Solve for x
    x = 125,556,290.56/12,552.80
  6. Step 6: Final answer
    x = 10,002.25

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1.5x scale

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.