Home / 12,525.02-17,286.38-7,147.43

Finding the Fourth Proportional to 12,525.02, 17,286.38 and 7,147.43

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Solution

The fourth proportional to 12,525.02, 17,286.38 and 7,147.43 is: 9,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.02 : 17,286.38 = 7,147.43 : x
  2. Step 2: Convert to fraction form
    12,525.02/17,286.38 = 7,147.43/x
  3. Step 3: Cross multiply
    12,525.02x = 17,286.38 × 7,147.43
  4. Step 4: Simplify right side
    12,525.02x = 123,553,191.00
  5. Step 5: Solve for x
    x = 123,553,191.00/12,525.02
  6. Step 6: Final answer
    x = 9,864.51

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Half scale
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Double scale
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Similar ratio
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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.