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Finding the Fourth Proportional to 8,689.88, 13,032.25 and 3,758.33

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Solution

The fourth proportional to 8,689.88, 13,032.25 and 3,758.33 is: 5,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.88 : 13,032.25 = 3,758.33 : x
  2. Step 2: Convert to fraction form
    8,689.88/13,032.25 = 3,758.33/x
  3. Step 3: Cross multiply
    8,689.88x = 13,032.25 × 3,758.33
  4. Step 4: Simplify right side
    8,689.88x = 48,979,496.14
  5. Step 5: Solve for x
    x = 48,979,496.14/8,689.88
  6. Step 6: Final answer
    x = 5,636.38

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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.