Home / 6,687.28-9,222.60-4,327.12

Finding the Fourth Proportional to 6,687.28, 9,222.60 and 4,327.12

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Solution

The fourth proportional to 6,687.28, 9,222.60 and 4,327.12 is: 5,967.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.28 : 9,222.60 = 4,327.12 : x
  2. Step 2: Convert to fraction form
    6,687.28/9,222.60 = 4,327.12/x
  3. Step 3: Cross multiply
    6,687.28x = 9,222.60 × 4,327.12
  4. Step 4: Simplify right side
    6,687.28x = 39,907,296.91
  5. Step 5: Solve for x
    x = 39,907,296.91/6,687.28
  6. Step 6: Final answer
    x = 5,967.64

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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.