Home / 12,281.97-18,426.80-5,169.95

Finding the Fourth Proportional to 12,281.97, 18,426.80 and 5,169.95

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Solution

The fourth proportional to 12,281.97, 18,426.80 and 5,169.95 is: 7,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.97 : 18,426.80 = 5,169.95 : x
  2. Step 2: Convert to fraction form
    12,281.97/18,426.80 = 5,169.95/x
  3. Step 3: Cross multiply
    12,281.97x = 18,426.80 × 5,169.95
  4. Step 4: Simplify right side
    12,281.97x = 95,265,634.66
  5. Step 5: Solve for x
    x = 95,265,634.66/12,281.97
  6. Step 6: Final answer
    x = 7,756.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.