Home / 15,849.27-21,872.43-9,558

Finding the Fourth Proportional to 15,849.27, 21,872.43 and 9,558

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Solution

The fourth proportional to 15,849.27, 21,872.43 and 9,558 is: 13,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.27 : 21,872.43 = 9,558 : x
  2. Step 2: Convert to fraction form
    15,849.27/21,872.43 = 9,558/x
  3. Step 3: Cross multiply
    15,849.27x = 21,872.43 × 9,558
  4. Step 4: Simplify right side
    15,849.27x = 209,056,685.94
  5. Step 5: Solve for x
    x = 209,056,685.94/15,849.27
  6. Step 6: Final answer
    x = 13,190.30

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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.