Home / 8,422.22-12,625.68-5,292.75

Finding the Fourth Proportional to 8,422.22, 12,625.68 and 5,292.75

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Solution

The fourth proportional to 8,422.22, 12,625.68 and 5,292.75 is: 7,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.22 : 12,625.68 = 5,292.75 : x
  2. Step 2: Convert to fraction form
    8,422.22/12,625.68 = 5,292.75/x
  3. Step 3: Cross multiply
    8,422.22x = 12,625.68 × 5,292.75
  4. Step 4: Simplify right side
    8,422.22x = 66,824,567.82
  5. Step 5: Solve for x
    x = 66,824,567.82/8,422.22
  6. Step 6: Final answer
    x = 7,934.32

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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.