Home / 10,957.74-15,121.65-5,921.92

Finding the Fourth Proportional to 10,957.74, 15,121.65 and 5,921.92

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Solution

The fourth proportional to 10,957.74, 15,121.65 and 5,921.92 is: 8,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.74 : 15,121.65 = 5,921.92 : x
  2. Step 2: Convert to fraction form
    10,957.74/15,121.65 = 5,921.92/x
  3. Step 3: Cross multiply
    10,957.74x = 15,121.65 × 5,921.92
  4. Step 4: Simplify right side
    10,957.74x = 89,549,201.57
  5. Step 5: Solve for x
    x = 89,549,201.57/10,957.74
  6. Step 6: Final answer
    x = 8,172.23

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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.