Home / 8,422.62-11,625.30-5,738.28

Finding the Fourth Proportional to 8,422.62, 11,625.30 and 5,738.28

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Solution

The fourth proportional to 8,422.62, 11,625.30 and 5,738.28 is: 7,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.62 : 11,625.30 = 5,738.28 : x
  2. Step 2: Convert to fraction form
    8,422.62/11,625.30 = 5,738.28/x
  3. Step 3: Cross multiply
    8,422.62x = 11,625.30 × 5,738.28
  4. Step 4: Simplify right side
    8,422.62x = 66,709,226.48
  5. Step 5: Solve for x
    x = 66,709,226.48/8,422.62
  6. Step 6: Final answer
    x = 7,920.25

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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.