Home / 8,887.68-12,265.38-4,908.78

Finding the Fourth Proportional to 8,887.68, 12,265.38 and 4,908.78

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Solution

The fourth proportional to 8,887.68, 12,265.38 and 4,908.78 is: 6,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.68 : 12,265.38 = 4,908.78 : x
  2. Step 2: Convert to fraction form
    8,887.68/12,265.38 = 4,908.78/x
  3. Step 3: Cross multiply
    8,887.68x = 12,265.38 × 4,908.78
  4. Step 4: Simplify right side
    8,887.68x = 60,208,052.04
  5. Step 5: Solve for x
    x = 60,208,052.04/8,887.68
  6. Step 6: Final answer
    x = 6,774.33

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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.