Home / 7,763.39-11,637.56-3,081.86

Finding the Fourth Proportional to 7,763.39, 11,637.56 and 3,081.86

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Solution

The fourth proportional to 7,763.39, 11,637.56 and 3,081.86 is: 4,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.39 : 11,637.56 = 3,081.86 : x
  2. Step 2: Convert to fraction form
    7,763.39/11,637.56 = 3,081.86/x
  3. Step 3: Cross multiply
    7,763.39x = 11,637.56 × 3,081.86
  4. Step 4: Simplify right side
    7,763.39x = 35,865,257.06
  5. Step 5: Solve for x
    x = 35,865,257.06/7,763.39
  6. Step 6: Final answer
    x = 4,619.80

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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.