Home / 8,887.12-13,330.61-3,620.89

Finding the Fourth Proportional to 8,887.12, 13,330.61 and 3,620.89

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Solution

The fourth proportional to 8,887.12, 13,330.61 and 3,620.89 is: 5,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.12 : 13,330.61 = 3,620.89 : x
  2. Step 2: Convert to fraction form
    8,887.12/13,330.61 = 3,620.89/x
  3. Step 3: Cross multiply
    8,887.12x = 13,330.61 × 3,620.89
  4. Step 4: Simplify right side
    8,887.12x = 48,268,672.44
  5. Step 5: Solve for x
    x = 48,268,672.44/8,887.12
  6. Step 6: Final answer
    x = 5,431.31

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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.