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Finding the Fourth Proportional to 8,448.32, 12,668.86 and 2,902.22

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Solution

The fourth proportional to 8,448.32, 12,668.86 and 2,902.22 is: 4,352.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.32 : 12,668.86 = 2,902.22 : x
  2. Step 2: Convert to fraction form
    8,448.32/12,668.86 = 2,902.22/x
  3. Step 3: Cross multiply
    8,448.32x = 12,668.86 × 2,902.22
  4. Step 4: Simplify right side
    8,448.32x = 36,767,843.29
  5. Step 5: Solve for x
    x = 36,767,843.29/8,448.32
  6. Step 6: Final answer
    x = 4,352.09

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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.