Home / 15,869.68-21,899.37-8,796.04

Finding the Fourth Proportional to 15,869.68, 21,899.37 and 8,796.04

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Solution

The fourth proportional to 15,869.68, 21,899.37 and 8,796.04 is: 12,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.68 : 21,899.37 = 8,796.04 : x
  2. Step 2: Convert to fraction form
    15,869.68/21,899.37 = 8,796.04/x
  3. Step 3: Cross multiply
    15,869.68x = 21,899.37 × 8,796.04
  4. Step 4: Simplify right side
    15,869.68x = 192,627,734.49
  5. Step 5: Solve for x
    x = 192,627,734.49/15,869.68
  6. Step 6: Final answer
    x = 12,138.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.