Home / 12,422.61-17,143.28-6,757.41

Finding the Fourth Proportional to 12,422.61, 17,143.28 and 6,757.41

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Solution

The fourth proportional to 12,422.61, 17,143.28 and 6,757.41 is: 9,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.61 : 17,143.28 = 6,757.41 : x
  2. Step 2: Convert to fraction form
    12,422.61/17,143.28 = 6,757.41/x
  3. Step 3: Cross multiply
    12,422.61x = 17,143.28 × 6,757.41
  4. Step 4: Simplify right side
    12,422.61x = 115,844,137.92
  5. Step 5: Solve for x
    x = 115,844,137.92/12,422.61
  6. Step 6: Final answer
    x = 9,325.27

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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.