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Finding the Fourth Proportional to 8,851.68, 12,208.32 and 8,255.52

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Solution

The fourth proportional to 8,851.68, 12,208.32 and 8,255.52 is: 11,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.68 : 12,208.32 = 8,255.52 : x
  2. Step 2: Convert to fraction form
    8,851.68/12,208.32 = 8,255.52/x
  3. Step 3: Cross multiply
    8,851.68x = 12,208.32 × 8,255.52
  4. Step 4: Simplify right side
    8,851.68x = 100,786,029.93
  5. Step 5: Solve for x
    x = 100,786,029.93/8,851.68
  6. Step 6: Final answer
    x = 11,386.09

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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.