Home / 8,290.50-11,450.61-5,491.14

Finding the Fourth Proportional to 8,290.50, 11,450.61 and 5,491.14

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Solution

The fourth proportional to 8,290.50, 11,450.61 and 5,491.14 is: 7,584.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.50 : 11,450.61 = 5,491.14 : x
  2. Step 2: Convert to fraction form
    8,290.50/11,450.61 = 5,491.14/x
  3. Step 3: Cross multiply
    8,290.50x = 11,450.61 × 5,491.14
  4. Step 4: Simplify right side
    8,290.50x = 62,876,902.60
  5. Step 5: Solve for x
    x = 62,876,902.60/8,290.50
  6. Step 6: Final answer
    x = 7,584.21

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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.