Home / 7,716.36-11,565.78-3,547.76

Finding the Fourth Proportional to 7,716.36, 11,565.78 and 3,547.76

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Solution

The fourth proportional to 7,716.36, 11,565.78 and 3,547.76 is: 5,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.36 : 11,565.78 = 3,547.76 : x
  2. Step 2: Convert to fraction form
    7,716.36/11,565.78 = 3,547.76/x
  3. Step 3: Cross multiply
    7,716.36x = 11,565.78 × 3,547.76
  4. Step 4: Simplify right side
    7,716.36x = 41,032,611.65
  5. Step 5: Solve for x
    x = 41,032,611.65/7,716.36
  6. Step 6: Final answer
    x = 5,317.61

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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.