Home / 15,974.29-22,007.77-12,615.90

Finding the Fourth Proportional to 15,974.29, 22,007.77 and 12,615.90

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Solution

The fourth proportional to 15,974.29, 22,007.77 and 12,615.90 is: 17,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,974.29 : 22,007.77 = 12,615.90 : x
  2. Step 2: Convert to fraction form
    15,974.29/22,007.77 = 12,615.90/x
  3. Step 3: Cross multiply
    15,974.29x = 22,007.77 × 12,615.90
  4. Step 4: Simplify right side
    15,974.29x = 277,647,825.54
  5. Step 5: Solve for x
    x = 277,647,825.54/15,974.29
  6. Step 6: Final answer
    x = 17,380.92

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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.