Home / 12,766.29-19,149.42-6,959.79

Finding the Fourth Proportional to 12,766.29, 19,149.42 and 6,959.79

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Solution

The fourth proportional to 12,766.29, 19,149.42 and 6,959.79 is: 10,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.29 : 19,149.42 = 6,959.79 : x
  2. Step 2: Convert to fraction form
    12,766.29/19,149.42 = 6,959.79/x
  3. Step 3: Cross multiply
    12,766.29x = 19,149.42 × 6,959.79
  4. Step 4: Simplify right side
    12,766.29x = 133,275,941.82
  5. Step 5: Solve for x
    x = 133,275,941.82/12,766.29
  6. Step 6: Final answer
    x = 10,439.68

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1.5x scale

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.