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Finding the Fourth Proportional to 7,716.82, 11,575.18 and 1,873.44

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Solution

The fourth proportional to 7,716.82, 11,575.18 and 1,873.44 is: 2,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.82 : 11,575.18 = 1,873.44 : x
  2. Step 2: Convert to fraction form
    7,716.82/11,575.18 = 1,873.44/x
  3. Step 3: Cross multiply
    7,716.82x = 11,575.18 × 1,873.44
  4. Step 4: Simplify right side
    7,716.82x = 21,685,405.22
  5. Step 5: Solve for x
    x = 21,685,405.22/7,716.82
  6. Step 6: Final answer
    x = 2,810.15

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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.