Home / 10,491.18-15,736.62-4,251.14

Finding the Fourth Proportional to 10,491.18, 15,736.62 and 4,251.14

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Solution

The fourth proportional to 10,491.18, 15,736.62 and 4,251.14 is: 6,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.18 : 15,736.62 = 4,251.14 : x
  2. Step 2: Convert to fraction form
    10,491.18/15,736.62 = 4,251.14/x
  3. Step 3: Cross multiply
    10,491.18x = 15,736.62 × 4,251.14
  4. Step 4: Simplify right side
    10,491.18x = 66,898,574.75
  5. Step 5: Solve for x
    x = 66,898,574.75/10,491.18
  6. Step 6: Final answer
    x = 6,376.65

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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.