Home / 7,755.18-11,632.97-1,911.84

Finding the Fourth Proportional to 7,755.18, 11,632.97 and 1,911.84

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Solution

The fourth proportional to 7,755.18, 11,632.97 and 1,911.84 is: 2,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.18 : 11,632.97 = 1,911.84 : x
  2. Step 2: Convert to fraction form
    7,755.18/11,632.97 = 1,911.84/x
  3. Step 3: Cross multiply
    7,755.18x = 11,632.97 × 1,911.84
  4. Step 4: Simplify right side
    7,755.18x = 22,240,377.36
  5. Step 5: Solve for x
    x = 22,240,377.36/7,755.18
  6. Step 6: Final answer
    x = 2,867.81

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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.