Home / 10,957.41-15,121.22-5,921.63

Finding the Fourth Proportional to 10,957.41, 15,121.22 and 5,921.63

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Solution

The fourth proportional to 10,957.41, 15,121.22 and 5,921.63 is: 8,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.41 : 15,121.22 = 5,921.63 : x
  2. Step 2: Convert to fraction form
    10,957.41/15,121.22 = 5,921.63/x
  3. Step 3: Cross multiply
    10,957.41x = 15,121.22 × 5,921.63
  4. Step 4: Simplify right side
    10,957.41x = 89,542,269.99
  5. Step 5: Solve for x
    x = 89,542,269.99/10,957.41
  6. Step 6: Final answer
    x = 8,171.85

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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.