Home / 7,976.74-11,011.89-6,180.21

Finding the Fourth Proportional to 7,976.74, 11,011.89 and 6,180.21

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Solution

The fourth proportional to 7,976.74, 11,011.89 and 6,180.21 is: 8,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.74 : 11,011.89 = 6,180.21 : x
  2. Step 2: Convert to fraction form
    7,976.74/11,011.89 = 6,180.21/x
  3. Step 3: Cross multiply
    7,976.74x = 11,011.89 × 6,180.21
  4. Step 4: Simplify right side
    7,976.74x = 68,055,792.70
  5. Step 5: Solve for x
    x = 68,055,792.70/7,976.74
  6. Step 6: Final answer
    x = 8,531.78

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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.