Home / 8,077.88-12,117.11-2,531.09

Finding the Fourth Proportional to 8,077.88, 12,117.11 and 2,531.09

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Solution

The fourth proportional to 8,077.88, 12,117.11 and 2,531.09 is: 3,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.88 : 12,117.11 = 2,531.09 : x
  2. Step 2: Convert to fraction form
    8,077.88/12,117.11 = 2,531.09/x
  3. Step 3: Cross multiply
    8,077.88x = 12,117.11 × 2,531.09
  4. Step 4: Simplify right side
    8,077.88x = 30,669,422.71
  5. Step 5: Solve for x
    x = 30,669,422.71/8,077.88
  6. Step 6: Final answer
    x = 3,796.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.