Home / 12,732.64-17,572.56-7,144.48

Finding the Fourth Proportional to 12,732.64, 17,572.56 and 7,144.48

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Solution

The fourth proportional to 12,732.64, 17,572.56 and 7,144.48 is: 9,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,732.64 : 17,572.56 = 7,144.48 : x
  2. Step 2: Convert to fraction form
    12,732.64/17,572.56 = 7,144.48/x
  3. Step 3: Cross multiply
    12,732.64x = 17,572.56 × 7,144.48
  4. Step 4: Simplify right side
    12,732.64x = 125,546,803.47
  5. Step 5: Solve for x
    x = 125,546,803.47/12,732.64
  6. Step 6: Final answer
    x = 9,860.23

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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.