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Finding the Fourth Proportional to 8,878.92, 12,252.25 and 5,102.09

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Solution

The fourth proportional to 8,878.92, 12,252.25 and 5,102.09 is: 7,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.92 : 12,252.25 = 5,102.09 : x
  2. Step 2: Convert to fraction form
    8,878.92/12,252.25 = 5,102.09/x
  3. Step 3: Cross multiply
    8,878.92x = 12,252.25 × 5,102.09
  4. Step 4: Simplify right side
    8,878.92x = 62,512,066.09
  5. Step 5: Solve for x
    x = 62,512,066.09/8,878.92
  6. Step 6: Final answer
    x = 7,040.51

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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.