Home / 10,990.96-15,167.45-5,955.19

Finding the Fourth Proportional to 10,990.96, 15,167.45 and 5,955.19

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Solution

The fourth proportional to 10,990.96, 15,167.45 and 5,955.19 is: 8,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.96 : 15,167.45 = 5,955.19 : x
  2. Step 2: Convert to fraction form
    10,990.96/15,167.45 = 5,955.19/x
  3. Step 3: Cross multiply
    10,990.96x = 15,167.45 × 5,955.19
  4. Step 4: Simplify right side
    10,990.96x = 90,325,023.53
  5. Step 5: Solve for x
    x = 90,325,023.53/10,990.96
  6. Step 6: Final answer
    x = 8,218.12

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Half scale
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Double scale
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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.