Home / 12,422.12-17,134.97-7,883.19

Finding the Fourth Proportional to 12,422.12, 17,134.97 and 7,883.19

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Solution

The fourth proportional to 12,422.12, 17,134.97 and 7,883.19 is: 10,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.12 : 17,134.97 = 7,883.19 : x
  2. Step 2: Convert to fraction form
    12,422.12/17,134.97 = 7,883.19/x
  3. Step 3: Cross multiply
    12,422.12x = 17,134.97 × 7,883.19
  4. Step 4: Simplify right side
    12,422.12x = 135,078,184.74
  5. Step 5: Solve for x
    x = 135,078,184.74/12,422.12
  6. Step 6: Final answer
    x = 10,874.01

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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.