Home / 8,912.44-12,296.34-5,185.72

Finding the Fourth Proportional to 8,912.44, 12,296.34 and 5,185.72

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Solution

The fourth proportional to 8,912.44, 12,296.34 and 5,185.72 is: 7,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.44 : 12,296.34 = 5,185.72 : x
  2. Step 2: Convert to fraction form
    8,912.44/12,296.34 = 5,185.72/x
  3. Step 3: Cross multiply
    8,912.44x = 12,296.34 × 5,185.72
  4. Step 4: Simplify right side
    8,912.44x = 63,765,376.26
  5. Step 5: Solve for x
    x = 63,765,376.26/8,912.44
  6. Step 6: Final answer
    x = 7,154.65

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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.