Home / 8,422.07-12,633.16-2,181.66

Finding the Fourth Proportional to 8,422.07, 12,633.16 and 2,181.66

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Solution

The fourth proportional to 8,422.07, 12,633.16 and 2,181.66 is: 3,272.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.07 : 12,633.16 = 2,181.66 : x
  2. Step 2: Convert to fraction form
    8,422.07/12,633.16 = 2,181.66/x
  3. Step 3: Cross multiply
    8,422.07x = 12,633.16 × 2,181.66
  4. Step 4: Simplify right side
    8,422.07x = 27,561,254.39
  5. Step 5: Solve for x
    x = 27,561,254.39/8,422.07
  6. Step 6: Final answer
    x = 3,272.50

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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.