Home / 8,768.80-13,156.26-5,478.04

Finding the Fourth Proportional to 8,768.80, 13,156.26 and 5,478.04

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Solution

The fourth proportional to 8,768.80, 13,156.26 and 5,478.04 is: 8,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.80 : 13,156.26 = 5,478.04 : x
  2. Step 2: Convert to fraction form
    8,768.80/13,156.26 = 5,478.04/x
  3. Step 3: Cross multiply
    8,768.80x = 13,156.26 × 5,478.04
  4. Step 4: Simplify right side
    8,768.80x = 72,070,452.75
  5. Step 5: Solve for x
    x = 72,070,452.75/8,768.80
  6. Step 6: Final answer
    x = 8,218.97

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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.