Home / 12,422.98-17,146.92-8,646.76

Finding the Fourth Proportional to 12,422.98, 17,146.92 and 8,646.76

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Solution

The fourth proportional to 12,422.98, 17,146.92 and 8,646.76 is: 11,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.98 : 17,146.92 = 8,646.76 : x
  2. Step 2: Convert to fraction form
    12,422.98/17,146.92 = 8,646.76/x
  3. Step 3: Cross multiply
    12,422.98x = 17,146.92 × 8,646.76
  4. Step 4: Simplify right side
    12,422.98x = 148,265,301.98
  5. Step 5: Solve for x
    x = 148,265,301.98/12,422.98
  6. Step 6: Final answer
    x = 11,934.76

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Half scale
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Double scale
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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.