Home / 8,945.80-13,403.46-5,821.04

Finding the Fourth Proportional to 8,945.80, 13,403.46 and 5,821.04

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Solution

The fourth proportional to 8,945.80, 13,403.46 and 5,821.04 is: 8,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.80 : 13,403.46 = 5,821.04 : x
  2. Step 2: Convert to fraction form
    8,945.80/13,403.46 = 5,821.04/x
  3. Step 3: Cross multiply
    8,945.80x = 13,403.46 × 5,821.04
  4. Step 4: Simplify right side
    8,945.80x = 78,022,076.80
  5. Step 5: Solve for x
    x = 78,022,076.80/8,945.80
  6. Step 6: Final answer
    x = 8,721.64

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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.