Home / 12,825.28-17,691.22-9,982.16

Finding the Fourth Proportional to 12,825.28, 17,691.22 and 9,982.16

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Solution

The fourth proportional to 12,825.28, 17,691.22 and 9,982.16 is: 13,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.28 : 17,691.22 = 9,982.16 : x
  2. Step 2: Convert to fraction form
    12,825.28/17,691.22 = 9,982.16/x
  3. Step 3: Cross multiply
    12,825.28x = 17,691.22 × 9,982.16
  4. Step 4: Simplify right side
    12,825.28x = 176,596,588.64
  5. Step 5: Solve for x
    x = 176,596,588.64/12,825.28
  6. Step 6: Final answer
    x = 13,769.41

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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.