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Finding the Fourth Proportional to 8,891.51, 13,334.99 and 2,650.05

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Solution

The fourth proportional to 8,891.51, 13,334.99 and 2,650.05 is: 3,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.51 : 13,334.99 = 2,650.05 : x
  2. Step 2: Convert to fraction form
    8,891.51/13,334.99 = 2,650.05/x
  3. Step 3: Cross multiply
    8,891.51x = 13,334.99 × 2,650.05
  4. Step 4: Simplify right side
    8,891.51x = 35,338,377.00
  5. Step 5: Solve for x
    x = 35,338,377.00/8,891.51
  6. Step 6: Final answer
    x = 3,974.40

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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.