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Finding the Fourth Proportional to 8,696.88, 13,043.97 and 2,853.45

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Solution

The fourth proportional to 8,696.88, 13,043.97 and 2,853.45 is: 4,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.88 : 13,043.97 = 2,853.45 : x
  2. Step 2: Convert to fraction form
    8,696.88/13,043.97 = 2,853.45/x
  3. Step 3: Cross multiply
    8,696.88x = 13,043.97 × 2,853.45
  4. Step 4: Simplify right side
    8,696.88x = 37,220,316.20
  5. Step 5: Solve for x
    x = 37,220,316.20/8,696.88
  6. Step 6: Final answer
    x = 4,279.73

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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.