Home / 7,764.51-11,647.14-2,218.68

Finding the Fourth Proportional to 7,764.51, 11,647.14 and 2,218.68

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Solution

The fourth proportional to 7,764.51, 11,647.14 and 2,218.68 is: 3,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.51 : 11,647.14 = 2,218.68 : x
  2. Step 2: Convert to fraction form
    7,764.51/11,647.14 = 2,218.68/x
  3. Step 3: Cross multiply
    7,764.51x = 11,647.14 × 2,218.68
  4. Step 4: Simplify right side
    7,764.51x = 25,841,276.58
  5. Step 5: Solve for x
    x = 25,841,276.58/7,764.51
  6. Step 6: Final answer
    x = 3,328.13

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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.