Home / 7,716.08-11,575.40-3,612.08

Finding the Fourth Proportional to 7,716.08, 11,575.40 and 3,612.08

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Solution

The fourth proportional to 7,716.08, 11,575.40 and 3,612.08 is: 5,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.08 : 11,575.40 = 3,612.08 : x
  2. Step 2: Convert to fraction form
    7,716.08/11,575.40 = 3,612.08/x
  3. Step 3: Cross multiply
    7,716.08x = 11,575.40 × 3,612.08
  4. Step 4: Simplify right side
    7,716.08x = 41,811,270.83
  5. Step 5: Solve for x
    x = 41,811,270.83/7,716.08
  6. Step 6: Final answer
    x = 5,418.72

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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.