Home / 8,214.62-11,344.46-5,231.79

Finding the Fourth Proportional to 8,214.62, 11,344.46 and 5,231.79

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Solution

The fourth proportional to 8,214.62, 11,344.46 and 5,231.79 is: 7,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.62 : 11,344.46 = 5,231.79 : x
  2. Step 2: Convert to fraction form
    8,214.62/11,344.46 = 5,231.79/x
  3. Step 3: Cross multiply
    8,214.62x = 11,344.46 × 5,231.79
  4. Step 4: Simplify right side
    8,214.62x = 59,351,806.22
  5. Step 5: Solve for x
    x = 59,351,806.22/8,214.62
  6. Step 6: Final answer
    x = 7,225.15

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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.