Home / 9,158.44-12,638.82-5,619.88

Finding the Fourth Proportional to 9,158.44, 12,638.82 and 5,619.88

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Solution

The fourth proportional to 9,158.44, 12,638.82 and 5,619.88 is: 7,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.44 : 12,638.82 = 5,619.88 : x
  2. Step 2: Convert to fraction form
    9,158.44/12,638.82 = 5,619.88/x
  3. Step 3: Cross multiply
    9,158.44x = 12,638.82 × 5,619.88
  4. Step 4: Simplify right side
    9,158.44x = 71,028,651.74
  5. Step 5: Solve for x
    x = 71,028,651.74/9,158.44
  6. Step 6: Final answer
    x = 7,755.54

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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.