Home / 7,454.72-11,202.60-5,160.80

Finding the Fourth Proportional to 7,454.72, 11,202.60 and 5,160.80

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Solution

The fourth proportional to 7,454.72, 11,202.60 and 5,160.80 is: 7,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.72 : 11,202.60 = 5,160.80 : x
  2. Step 2: Convert to fraction form
    7,454.72/11,202.60 = 5,160.80/x
  3. Step 3: Cross multiply
    7,454.72x = 11,202.60 × 5,160.80
  4. Step 4: Simplify right side
    7,454.72x = 57,814,378.08
  5. Step 5: Solve for x
    x = 57,814,378.08/7,454.72
  6. Step 6: Final answer
    x = 7,755.41

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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.