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Finding the Fourth Proportional to 8,668.88, 13,001.97 and 2,825.45

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Solution

The fourth proportional to 8,668.88, 13,001.97 and 2,825.45 is: 4,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.88 : 13,001.97 = 2,825.45 : x
  2. Step 2: Convert to fraction form
    8,668.88/13,001.97 = 2,825.45/x
  3. Step 3: Cross multiply
    8,668.88x = 13,001.97 × 2,825.45
  4. Step 4: Simplify right side
    8,668.88x = 36,736,416.14
  5. Step 5: Solve for x
    x = 36,736,416.14/8,668.88
  6. Step 6: Final answer
    x = 4,237.73

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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.