Home / 16,871.15-25,309.82-8,442.07

Finding the Fourth Proportional to 16,871.15, 25,309.82 and 8,442.07

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Solution

The fourth proportional to 16,871.15, 25,309.82 and 8,442.07 is: 12,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.15 : 25,309.82 = 8,442.07 : x
  2. Step 2: Convert to fraction form
    16,871.15/25,309.82 = 8,442.07/x
  3. Step 3: Cross multiply
    16,871.15x = 25,309.82 × 8,442.07
  4. Step 4: Simplify right side
    16,871.15x = 213,667,166.64
  5. Step 5: Solve for x
    x = 213,667,166.64/16,871.15
  6. Step 6: Final answer
    x = 12,664.65

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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.