Home / 10,990.92-15,167.42-5,955.12

Finding the Fourth Proportional to 10,990.92, 15,167.42 and 5,955.12

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Solution

The fourth proportional to 10,990.92, 15,167.42 and 5,955.12 is: 8,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.92 : 15,167.42 = 5,955.12 : x
  2. Step 2: Convert to fraction form
    10,990.92/15,167.42 = 5,955.12/x
  3. Step 3: Cross multiply
    10,990.92x = 15,167.42 × 5,955.12
  4. Step 4: Simplify right side
    10,990.92x = 90,323,806.19
  5. Step 5: Solve for x
    x = 90,323,806.19/10,990.92
  6. Step 6: Final answer
    x = 8,218.04

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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.