Home / 15,181.98-20,951.16-8,468.04

Finding the Fourth Proportional to 15,181.98, 20,951.16 and 8,468.04

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Solution

The fourth proportional to 15,181.98, 20,951.16 and 8,468.04 is: 11,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.98 : 20,951.16 = 8,468.04 : x
  2. Step 2: Convert to fraction form
    15,181.98/20,951.16 = 8,468.04/x
  3. Step 3: Cross multiply
    15,181.98x = 20,951.16 × 8,468.04
  4. Step 4: Simplify right side
    15,181.98x = 177,415,113.83
  5. Step 5: Solve for x
    x = 177,415,113.83/15,181.98
  6. Step 6: Final answer
    x = 11,685.90

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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.