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Finding the Fourth Proportional to 8,452.97, 12,678.47 and 2,213.58

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Solution

The fourth proportional to 8,452.97, 12,678.47 and 2,213.58 is: 3,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.97 : 12,678.47 = 2,213.58 : x
  2. Step 2: Convert to fraction form
    8,452.97/12,678.47 = 2,213.58/x
  3. Step 3: Cross multiply
    8,452.97x = 12,678.47 × 2,213.58
  4. Step 4: Simplify right side
    8,452.97x = 28,064,807.62
  5. Step 5: Solve for x
    x = 28,064,807.62/8,452.97
  6. Step 6: Final answer
    x = 3,320.11

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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.