Home / 10,816.12-16,251.52-10,378.72

Finding the Fourth Proportional to 10,816.12, 16,251.52 and 10,378.72

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Solution

The fourth proportional to 10,816.12, 16,251.52 and 10,378.72 is: 15,594.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.12 : 16,251.52 = 10,378.72 : x
  2. Step 2: Convert to fraction form
    10,816.12/16,251.52 = 10,378.72/x
  3. Step 3: Cross multiply
    10,816.12x = 16,251.52 × 10,378.72
  4. Step 4: Simplify right side
    10,816.12x = 168,669,975.65
  5. Step 5: Solve for x
    x = 168,669,975.65/10,816.12
  6. Step 6: Final answer
    x = 15,594.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.