Home / 12,481.38-17,223.69-7,103.40

Finding the Fourth Proportional to 12,481.38, 17,223.69 and 7,103.40

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Solution

The fourth proportional to 12,481.38, 17,223.69 and 7,103.40 is: 9,802.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.38 : 17,223.69 = 7,103.40 : x
  2. Step 2: Convert to fraction form
    12,481.38/17,223.69 = 7,103.40/x
  3. Step 3: Cross multiply
    12,481.38x = 17,223.69 × 7,103.40
  4. Step 4: Simplify right side
    12,481.38x = 122,346,759.55
  5. Step 5: Solve for x
    x = 122,346,759.55/12,481.38
  6. Step 6: Final answer
    x = 9,802.34

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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.