Home / 12,167.49-16,791.74-6,862.20

Finding the Fourth Proportional to 12,167.49, 16,791.74 and 6,862.20

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Solution

The fourth proportional to 12,167.49, 16,791.74 and 6,862.20 is: 9,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.49 : 16,791.74 = 6,862.20 : x
  2. Step 2: Convert to fraction form
    12,167.49/16,791.74 = 6,862.20/x
  3. Step 3: Cross multiply
    12,167.49x = 16,791.74 × 6,862.20
  4. Step 4: Simplify right side
    12,167.49x = 115,228,278.23
  5. Step 5: Solve for x
    x = 115,228,278.23/12,167.49
  6. Step 6: Final answer
    x = 9,470.18

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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.