Home / 14,608.80-20,160.36-8,321.04

Finding the Fourth Proportional to 14,608.80, 20,160.36 and 8,321.04

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Solution

The fourth proportional to 14,608.80, 20,160.36 and 8,321.04 is: 11,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.80 : 20,160.36 = 8,321.04 : x
  2. Step 2: Convert to fraction form
    14,608.80/20,160.36 = 8,321.04/x
  3. Step 3: Cross multiply
    14,608.80x = 20,160.36 × 8,321.04
  4. Step 4: Simplify right side
    14,608.80x = 167,755,161.97
  5. Step 5: Solve for x
    x = 167,755,161.97/14,608.80
  6. Step 6: Final answer
    x = 11,483.16

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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.