Home / 7,767.36-11,656.58-3,386.07

Finding the Fourth Proportional to 7,767.36, 11,656.58 and 3,386.07

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Solution

The fourth proportional to 7,767.36, 11,656.58 and 3,386.07 is: 5,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.36 : 11,656.58 = 3,386.07 : x
  2. Step 2: Convert to fraction form
    7,767.36/11,656.58 = 3,386.07/x
  3. Step 3: Cross multiply
    7,767.36x = 11,656.58 × 3,386.07
  4. Step 4: Simplify right side
    7,767.36x = 39,469,978.91
  5. Step 5: Solve for x
    x = 39,469,978.91/7,767.36
  6. Step 6: Final answer
    x = 5,081.52

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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.