Home / 11,262.60-16,872.30-6,640.20

Finding the Fourth Proportional to 11,262.60, 16,872.30 and 6,640.20

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Solution

The fourth proportional to 11,262.60, 16,872.30 and 6,640.20 is: 9,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.60 : 16,872.30 = 6,640.20 : x
  2. Step 2: Convert to fraction form
    11,262.60/16,872.30 = 6,640.20/x
  3. Step 3: Cross multiply
    11,262.60x = 16,872.30 × 6,640.20
  4. Step 4: Simplify right side
    11,262.60x = 112,035,446.46
  5. Step 5: Solve for x
    x = 112,035,446.46/11,262.60
  6. Step 6: Final answer
    x = 9,947.57

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1.5x scale

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.