Home / 7,520.20-11,291.10-5,878.60

Finding the Fourth Proportional to 7,520.20, 11,291.10 and 5,878.60

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Solution

The fourth proportional to 7,520.20, 11,291.10 and 5,878.60 is: 8,826.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.20 : 11,291.10 = 5,878.60 : x
  2. Step 2: Convert to fraction form
    7,520.20/11,291.10 = 5,878.60/x
  3. Step 3: Cross multiply
    7,520.20x = 11,291.10 × 5,878.60
  4. Step 4: Simplify right side
    7,520.20x = 66,375,860.46
  5. Step 5: Solve for x
    x = 66,375,860.46/7,520.20
  6. Step 6: Final answer
    x = 8,826.34

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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.