Home / 12,790.71-17,651.66-7,125.48

Finding the Fourth Proportional to 12,790.71, 17,651.66 and 7,125.48

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Solution

The fourth proportional to 12,790.71, 17,651.66 and 7,125.48 is: 9,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.71 : 17,651.66 = 7,125.48 : x
  2. Step 2: Convert to fraction form
    12,790.71/17,651.66 = 7,125.48/x
  3. Step 3: Cross multiply
    12,790.71x = 17,651.66 × 7,125.48
  4. Step 4: Simplify right side
    12,790.71x = 125,776,514.67
  5. Step 5: Solve for x
    x = 125,776,514.67/12,790.71
  6. Step 6: Final answer
    x = 9,833.43

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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.