Home / 7,816.11-11,718.49-3,653.79

Finding the Fourth Proportional to 7,816.11, 11,718.49 and 3,653.79

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Solution

The fourth proportional to 7,816.11, 11,718.49 and 3,653.79 is: 5,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.11 : 11,718.49 = 3,653.79 : x
  2. Step 2: Convert to fraction form
    7,816.11/11,718.49 = 3,653.79/x
  3. Step 3: Cross multiply
    7,816.11x = 11,718.49 × 3,653.79
  4. Step 4: Simplify right side
    7,816.11x = 42,816,901.58
  5. Step 5: Solve for x
    x = 42,816,901.58/7,816.11
  6. Step 6: Final answer
    x = 5,478.03

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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.