Home / 10,993.12-15,170.50-5,957.38

Finding the Fourth Proportional to 10,993.12, 15,170.50 and 5,957.38

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Solution

The fourth proportional to 10,993.12, 15,170.50 and 5,957.38 is: 8,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.12 : 15,170.50 = 5,957.38 : x
  2. Step 2: Convert to fraction form
    10,993.12/15,170.50 = 5,957.38/x
  3. Step 3: Cross multiply
    10,993.12x = 15,170.50 × 5,957.38
  4. Step 4: Simplify right side
    10,993.12x = 90,376,433.29
  5. Step 5: Solve for x
    x = 90,376,433.29/10,993.12
  6. Step 6: Final answer
    x = 8,221.18

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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.