Home / 8,151.84-11,245.23-5,162.54

Finding the Fourth Proportional to 8,151.84, 11,245.23 and 5,162.54

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Solution

The fourth proportional to 8,151.84, 11,245.23 and 5,162.54 is: 7,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.84 : 11,245.23 = 5,162.54 : x
  2. Step 2: Convert to fraction form
    8,151.84/11,245.23 = 5,162.54/x
  3. Step 3: Cross multiply
    8,151.84x = 11,245.23 × 5,162.54
  4. Step 4: Simplify right side
    8,151.84x = 58,053,893.46
  5. Step 5: Solve for x
    x = 58,053,893.46/8,151.84
  6. Step 6: Final answer
    x = 7,121.57

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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.