Home / 10,957.68-15,121.08-6,765.12

Finding the Fourth Proportional to 10,957.68, 15,121.08 and 6,765.12

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Solution

The fourth proportional to 10,957.68, 15,121.08 and 6,765.12 is: 9,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.68 : 15,121.08 = 6,765.12 : x
  2. Step 2: Convert to fraction form
    10,957.68/15,121.08 = 6,765.12/x
  3. Step 3: Cross multiply
    10,957.68x = 15,121.08 × 6,765.12
  4. Step 4: Simplify right side
    10,957.68x = 102,295,920.73
  5. Step 5: Solve for x
    x = 102,295,920.73/10,957.68
  6. Step 6: Final answer
    x = 9,335.55

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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.