Home / 11,081.28-16,621.60-3,290.16

Finding the Fourth Proportional to 11,081.28, 16,621.60 and 3,290.16

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Solution

The fourth proportional to 11,081.28, 16,621.60 and 3,290.16 is: 4,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.28 : 16,621.60 = 3,290.16 : x
  2. Step 2: Convert to fraction form
    11,081.28/16,621.60 = 3,290.16/x
  3. Step 3: Cross multiply
    11,081.28x = 16,621.60 × 3,290.16
  4. Step 4: Simplify right side
    11,081.28x = 54,687,723.46
  5. Step 5: Solve for x
    x = 54,687,723.46/11,081.28
  6. Step 6: Final answer
    x = 4,935.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.