Home / 8,618.44-11,892.18-5,081.80

Finding the Fourth Proportional to 8,618.44, 11,892.18 and 5,081.80

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Solution

The fourth proportional to 8,618.44, 11,892.18 and 5,081.80 is: 7,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.44 : 11,892.18 = 5,081.80 : x
  2. Step 2: Convert to fraction form
    8,618.44/11,892.18 = 5,081.80/x
  3. Step 3: Cross multiply
    8,618.44x = 11,892.18 × 5,081.80
  4. Step 4: Simplify right side
    8,618.44x = 60,433,680.32
  5. Step 5: Solve for x
    x = 60,433,680.32/8,618.44
  6. Step 6: Final answer
    x = 7,012.14

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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.