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Finding the Fourth Proportional to 8,778.97, 13,168.47 and 2,935.59

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Solution

The fourth proportional to 8,778.97, 13,168.47 and 2,935.59 is: 4,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.97 : 13,168.47 = 2,935.59 : x
  2. Step 2: Convert to fraction form
    8,778.97/13,168.47 = 2,935.59/x
  3. Step 3: Cross multiply
    8,778.97x = 13,168.47 × 2,935.59
  4. Step 4: Simplify right side
    8,778.97x = 38,657,228.85
  5. Step 5: Solve for x
    x = 38,657,228.85/8,778.97
  6. Step 6: Final answer
    x = 4,403.39

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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.