Home / 8,268.89-11,400.99-7,202.72

Finding the Fourth Proportional to 8,268.89, 11,400.99 and 7,202.72

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Solution

The fourth proportional to 8,268.89, 11,400.99 and 7,202.72 is: 9,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.89 : 11,400.99 = 7,202.72 : x
  2. Step 2: Convert to fraction form
    8,268.89/11,400.99 = 7,202.72/x
  3. Step 3: Cross multiply
    8,268.89x = 11,400.99 × 7,202.72
  4. Step 4: Simplify right side
    8,268.89x = 82,118,140.19
  5. Step 5: Solve for x
    x = 82,118,140.19/8,268.89
  6. Step 6: Final answer
    x = 9,930.98

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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.