Home / 12,217.97-16,860.62-7,182.74

Finding the Fourth Proportional to 12,217.97, 16,860.62 and 7,182.74

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Solution

The fourth proportional to 12,217.97, 16,860.62 and 7,182.74 is: 9,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.97 : 16,860.62 = 7,182.74 : x
  2. Step 2: Convert to fraction form
    12,217.97/16,860.62 = 7,182.74/x
  3. Step 3: Cross multiply
    12,217.97x = 16,860.62 × 7,182.74
  4. Step 4: Simplify right side
    12,217.97x = 121,105,329.48
  5. Step 5: Solve for x
    x = 121,105,329.48/12,217.97
  6. Step 6: Final answer
    x = 9,912.07

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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.