Home / 13,854.26-20,755.10-8,220.03

Finding the Fourth Proportional to 13,854.26, 20,755.10 and 8,220.03

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Solution

The fourth proportional to 13,854.26, 20,755.10 and 8,220.03 is: 12,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.26 : 20,755.10 = 8,220.03 : x
  2. Step 2: Convert to fraction form
    13,854.26/20,755.10 = 8,220.03/x
  3. Step 3: Cross multiply
    13,854.26x = 20,755.10 × 8,220.03
  4. Step 4: Simplify right side
    13,854.26x = 170,607,604.12
  5. Step 5: Solve for x
    x = 170,607,604.12/13,854.26
  6. Step 6: Final answer
    x = 12,314.45

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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.