Home / 14,961.70-20,646.25-8,247.61

Finding the Fourth Proportional to 14,961.70, 20,646.25 and 8,247.61

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Solution

The fourth proportional to 14,961.70, 20,646.25 and 8,247.61 is: 11,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.70 : 20,646.25 = 8,247.61 : x
  2. Step 2: Convert to fraction form
    14,961.70/20,646.25 = 8,247.61/x
  3. Step 3: Cross multiply
    14,961.70x = 20,646.25 × 8,247.61
  4. Step 4: Simplify right side
    14,961.70x = 170,282,217.96
  5. Step 5: Solve for x
    x = 170,282,217.96/14,961.70
  6. Step 6: Final answer
    x = 11,381.21

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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.