Home / 6,921.47-10,385.25-3,633.80

Finding the Fourth Proportional to 6,921.47, 10,385.25 and 3,633.80

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Solution

The fourth proportional to 6,921.47, 10,385.25 and 3,633.80 is: 5,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.47 : 10,385.25 = 3,633.80 : x
  2. Step 2: Convert to fraction form
    6,921.47/10,385.25 = 3,633.80/x
  3. Step 3: Cross multiply
    6,921.47x = 10,385.25 × 3,633.80
  4. Step 4: Simplify right side
    6,921.47x = 37,737,869.52
  5. Step 5: Solve for x
    x = 37,737,869.52/6,921.47
  6. Step 6: Final answer
    x = 5,452.29

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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.