Home / 7,765.27-11,646.59-3,815.51

Finding the Fourth Proportional to 7,765.27, 11,646.59 and 3,815.51

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Solution

The fourth proportional to 7,765.27, 11,646.59 and 3,815.51 is: 5,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.27 : 11,646.59 = 3,815.51 : x
  2. Step 2: Convert to fraction form
    7,765.27/11,646.59 = 3,815.51/x
  3. Step 3: Cross multiply
    7,765.27x = 11,646.59 × 3,815.51
  4. Step 4: Simplify right side
    7,765.27x = 44,437,603.30
  5. Step 5: Solve for x
    x = 44,437,603.30/7,765.27
  6. Step 6: Final answer
    x = 5,722.61

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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.