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Finding the Fourth Proportional to 8,957.88, 13,436.82 and 3,114.45

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Solution

The fourth proportional to 8,957.88, 13,436.82 and 3,114.45 is: 4,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.88 : 13,436.82 = 3,114.45 : x
  2. Step 2: Convert to fraction form
    8,957.88/13,436.82 = 3,114.45/x
  3. Step 3: Cross multiply
    8,957.88x = 13,436.82 × 3,114.45
  4. Step 4: Simplify right side
    8,957.88x = 41,848,304.05
  5. Step 5: Solve for x
    x = 41,848,304.05/8,957.88
  6. Step 6: Final answer
    x = 4,671.68

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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.