Home / 7,722.12-11,578.18-5,081.63

Finding the Fourth Proportional to 7,722.12, 11,578.18 and 5,081.63

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Solution

The fourth proportional to 7,722.12, 11,578.18 and 5,081.63 is: 7,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.12 : 11,578.18 = 5,081.63 : x
  2. Step 2: Convert to fraction form
    7,722.12/11,578.18 = 5,081.63/x
  3. Step 3: Cross multiply
    7,722.12x = 11,578.18 × 5,081.63
  4. Step 4: Simplify right side
    7,722.12x = 58,836,026.83
  5. Step 5: Solve for x
    x = 58,836,026.83/7,722.12
  6. Step 6: Final answer
    x = 7,619.15

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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.