Home / 15,179.26-20,949.56-8,891.77

Finding the Fourth Proportional to 15,179.26, 20,949.56 and 8,891.77

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Solution

The fourth proportional to 15,179.26, 20,949.56 and 8,891.77 is: 12,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.26 : 20,949.56 = 8,891.77 : x
  2. Step 2: Convert to fraction form
    15,179.26/20,949.56 = 8,891.77/x
  3. Step 3: Cross multiply
    15,179.26x = 20,949.56 × 8,891.77
  4. Step 4: Simplify right side
    15,179.26x = 186,278,669.12
  5. Step 5: Solve for x
    x = 186,278,669.12/15,179.26
  6. Step 6: Final answer
    x = 12,271.92

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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.