Home / 14,686.40-21,997.20-8,832.80

Finding the Fourth Proportional to 14,686.40, 21,997.20 and 8,832.80

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Solution

The fourth proportional to 14,686.40, 21,997.20 and 8,832.80 is: 13,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.40 : 21,997.20 = 8,832.80 : x
  2. Step 2: Convert to fraction form
    14,686.40/21,997.20 = 8,832.80/x
  3. Step 3: Cross multiply
    14,686.40x = 21,997.20 × 8,832.80
  4. Step 4: Simplify right side
    14,686.40x = 194,296,868.16
  5. Step 5: Solve for x
    x = 194,296,868.16/14,686.40
  6. Step 6: Final answer
    x = 13,229.71

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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.