Home / 12,403.28-17,119.44-7,101.14

Finding the Fourth Proportional to 12,403.28, 17,119.44 and 7,101.14

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Solution

The fourth proportional to 12,403.28, 17,119.44 and 7,101.14 is: 9,801.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.28 : 17,119.44 = 7,101.14 : x
  2. Step 2: Convert to fraction form
    12,403.28/17,119.44 = 7,101.14/x
  3. Step 3: Cross multiply
    12,403.28x = 17,119.44 × 7,101.14
  4. Step 4: Simplify right side
    12,403.28x = 121,567,540.16
  5. Step 5: Solve for x
    x = 121,567,540.16/12,403.28
  6. Step 6: Final answer
    x = 9,801.24

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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.