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Finding the Fourth Proportional to 8,153.57, 12,229.96 and 2,888.49

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Solution

The fourth proportional to 8,153.57, 12,229.96 and 2,888.49 is: 4,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.57 : 12,229.96 = 2,888.49 : x
  2. Step 2: Convert to fraction form
    8,153.57/12,229.96 = 2,888.49/x
  3. Step 3: Cross multiply
    8,153.57x = 12,229.96 × 2,888.49
  4. Step 4: Simplify right side
    8,153.57x = 35,326,109.94
  5. Step 5: Solve for x
    x = 35,326,109.94/8,153.57
  6. Step 6: Final answer
    x = 4,332.60

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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.