Home / 12,867.43-17,745.18-9,883.39

Finding the Fourth Proportional to 12,867.43, 17,745.18 and 9,883.39

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Solution

The fourth proportional to 12,867.43, 17,745.18 and 9,883.39 is: 13,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.43 : 17,745.18 = 9,883.39 : x
  2. Step 2: Convert to fraction form
    12,867.43/17,745.18 = 9,883.39/x
  3. Step 3: Cross multiply
    12,867.43x = 17,745.18 × 9,883.39
  4. Step 4: Simplify right side
    12,867.43x = 175,382,534.56
  5. Step 5: Solve for x
    x = 175,382,534.56/12,867.43
  6. Step 6: Final answer
    x = 13,629.96

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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.