Home / 14,755.50-20,362.86-8,469.36

Finding the Fourth Proportional to 14,755.50, 20,362.86 and 8,469.36

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Solution

The fourth proportional to 14,755.50, 20,362.86 and 8,469.36 is: 11,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,755.50 : 20,362.86 = 8,469.36 : x
  2. Step 2: Convert to fraction form
    14,755.50/20,362.86 = 8,469.36/x
  3. Step 3: Cross multiply
    14,755.50x = 20,362.86 × 8,469.36
  4. Step 4: Simplify right side
    14,755.50x = 172,460,391.97
  5. Step 5: Solve for x
    x = 172,460,391.97/14,755.50
  6. Step 6: Final answer
    x = 11,687.87

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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.