Home / 8,169.09-11,276.79-5,520.08

Finding the Fourth Proportional to 8,169.09, 11,276.79 and 5,520.08

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Solution

The fourth proportional to 8,169.09, 11,276.79 and 5,520.08 is: 7,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.09 : 11,276.79 = 5,520.08 : x
  2. Step 2: Convert to fraction form
    8,169.09/11,276.79 = 5,520.08/x
  3. Step 3: Cross multiply
    8,169.09x = 11,276.79 × 5,520.08
  4. Step 4: Simplify right side
    8,169.09x = 62,248,790.43
  5. Step 5: Solve for x
    x = 62,248,790.43/8,169.09
  6. Step 6: Final answer
    x = 7,620.04

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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.