Home / 7,686.36-11,530.62-2,491.02

Finding the Fourth Proportional to 7,686.36, 11,530.62 and 2,491.02

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Solution

The fourth proportional to 7,686.36, 11,530.62 and 2,491.02 is: 3,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.36 : 11,530.62 = 2,491.02 : x
  2. Step 2: Convert to fraction form
    7,686.36/11,530.62 = 2,491.02/x
  3. Step 3: Cross multiply
    7,686.36x = 11,530.62 × 2,491.02
  4. Step 4: Simplify right side
    7,686.36x = 28,723,005.03
  5. Step 5: Solve for x
    x = 28,723,005.03/7,686.36
  6. Step 6: Final answer
    x = 3,736.88

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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.