Home / 12,422.83-17,143.36-9,250.32

Finding the Fourth Proportional to 12,422.83, 17,143.36 and 9,250.32

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Solution

The fourth proportional to 12,422.83, 17,143.36 and 9,250.32 is: 12,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.83 : 17,143.36 = 9,250.32 : x
  2. Step 2: Convert to fraction form
    12,422.83/17,143.36 = 9,250.32/x
  3. Step 3: Cross multiply
    12,422.83x = 17,143.36 × 9,250.32
  4. Step 4: Simplify right side
    12,422.83x = 158,581,480.16
  5. Step 5: Solve for x
    x = 158,581,480.16/12,422.83
  6. Step 6: Final answer
    x = 12,765.33

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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.