Home / 9,151.44-12,611.56-8,982.96

Finding the Fourth Proportional to 9,151.44, 12,611.56 and 8,982.96

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Solution

The fourth proportional to 9,151.44, 12,611.56 and 8,982.96 is: 12,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.44 : 12,611.56 = 8,982.96 : x
  2. Step 2: Convert to fraction form
    9,151.44/12,611.56 = 8,982.96/x
  3. Step 3: Cross multiply
    9,151.44x = 12,611.56 × 8,982.96
  4. Step 4: Simplify right side
    9,151.44x = 113,289,139.02
  5. Step 5: Solve for x
    x = 113,289,139.02/9,151.44
  6. Step 6: Final answer
    x = 12,379.38

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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.