Home / 12,191.88-16,825.14-6,886.92

Finding the Fourth Proportional to 12,191.88, 16,825.14 and 6,886.92

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Solution

The fourth proportional to 12,191.88, 16,825.14 and 6,886.92 is: 9,504.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.88 : 16,825.14 = 6,886.92 : x
  2. Step 2: Convert to fraction form
    12,191.88/16,825.14 = 6,886.92/x
  3. Step 3: Cross multiply
    12,191.88x = 16,825.14 × 6,886.92
  4. Step 4: Simplify right side
    12,191.88x = 115,873,393.17
  5. Step 5: Solve for x
    x = 115,873,393.17/12,191.88
  6. Step 6: Final answer
    x = 9,504.14

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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.