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Finding the Fourth Proportional to 8,291.22, 12,438.17 and 2,448.42

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Solution

The fourth proportional to 8,291.22, 12,438.17 and 2,448.42 is: 3,673.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.22 : 12,438.17 = 2,448.42 : x
  2. Step 2: Convert to fraction form
    8,291.22/12,438.17 = 2,448.42/x
  3. Step 3: Cross multiply
    8,291.22x = 12,438.17 × 2,448.42
  4. Step 4: Simplify right side
    8,291.22x = 30,453,864.19
  5. Step 5: Solve for x
    x = 30,453,864.19/8,291.22
  6. Step 6: Final answer
    x = 3,673.03

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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.