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Finding the Fourth Proportional to 8,725.48, 13,087.13 and 2,801.89

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Solution

The fourth proportional to 8,725.48, 13,087.13 and 2,801.89 is: 4,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.48 : 13,087.13 = 2,801.89 : x
  2. Step 2: Convert to fraction form
    8,725.48/13,087.13 = 2,801.89/x
  3. Step 3: Cross multiply
    8,725.48x = 13,087.13 × 2,801.89
  4. Step 4: Simplify right side
    8,725.48x = 36,668,701.03
  5. Step 5: Solve for x
    x = 36,668,701.03/8,725.48
  6. Step 6: Final answer
    x = 4,202.49

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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.