Home / 15,181.83-20,951.16-8,808.96

Finding the Fourth Proportional to 15,181.83, 20,951.16 and 8,808.96

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Solution

The fourth proportional to 15,181.83, 20,951.16 and 8,808.96 is: 12,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.83 : 20,951.16 = 8,808.96 : x
  2. Step 2: Convert to fraction form
    15,181.83/20,951.16 = 8,808.96/x
  3. Step 3: Cross multiply
    15,181.83x = 20,951.16 × 8,808.96
  4. Step 4: Simplify right side
    15,181.83x = 184,557,930.39
  5. Step 5: Solve for x
    x = 184,557,930.39/15,181.83
  6. Step 6: Final answer
    x = 12,156.50

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1.5x scale

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.