Home / 7,766.74-11,651.91-2,220.15

Finding the Fourth Proportional to 7,766.74, 11,651.91 and 2,220.15

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Solution

The fourth proportional to 7,766.74, 11,651.91 and 2,220.15 is: 3,330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.74 : 11,651.91 = 2,220.15 : x
  2. Step 2: Convert to fraction form
    7,766.74/11,651.91 = 2,220.15/x
  3. Step 3: Cross multiply
    7,766.74x = 11,651.91 × 2,220.15
  4. Step 4: Simplify right side
    7,766.74x = 25,868,987.99
  5. Step 5: Solve for x
    x = 25,868,987.99/7,766.74
  6. Step 6: Final answer
    x = 3,330.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.