Home / 7,618.41-11,426.45-2,687.36

Finding the Fourth Proportional to 7,618.41, 11,426.45 and 2,687.36

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Solution

The fourth proportional to 7,618.41, 11,426.45 and 2,687.36 is: 4,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.41 : 11,426.45 = 2,687.36 : x
  2. Step 2: Convert to fraction form
    7,618.41/11,426.45 = 2,687.36/x
  3. Step 3: Cross multiply
    7,618.41x = 11,426.45 × 2,687.36
  4. Step 4: Simplify right side
    7,618.41x = 30,706,914.10
  5. Step 5: Solve for x
    x = 30,706,914.10/7,618.41
  6. Step 6: Final answer
    x = 4,030.62

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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.