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Finding the Fourth Proportional to 8,886.78, 12,264.21 and 4,908.33

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Solution

The fourth proportional to 8,886.78, 12,264.21 and 4,908.33 is: 6,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.78 : 12,264.21 = 4,908.33 : x
  2. Step 2: Convert to fraction form
    8,886.78/12,264.21 = 4,908.33/x
  3. Step 3: Cross multiply
    8,886.78x = 12,264.21 × 4,908.33
  4. Step 4: Simplify right side
    8,886.78x = 60,196,789.87
  5. Step 5: Solve for x
    x = 60,196,789.87/8,886.78
  6. Step 6: Final answer
    x = 6,773.75

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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.