Home / 11,951.20-16,492.24-6,645.90

Finding the Fourth Proportional to 11,951.20, 16,492.24 and 6,645.90

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Solution

The fourth proportional to 11,951.20, 16,492.24 and 6,645.90 is: 9,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.20 : 16,492.24 = 6,645.90 : x
  2. Step 2: Convert to fraction form
    11,951.20/16,492.24 = 6,645.90/x
  3. Step 3: Cross multiply
    11,951.20x = 16,492.24 × 6,645.90
  4. Step 4: Simplify right side
    11,951.20x = 109,605,777.82
  5. Step 5: Solve for x
    x = 109,605,777.82/11,951.20
  6. Step 6: Final answer
    x = 9,171.11

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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.