Home / 11,621-17,439.60-4,695.56

Finding the Fourth Proportional to 11,621, 17,439.60 and 4,695.56

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Solution

The fourth proportional to 11,621, 17,439.60 and 4,695.56 is: 7,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621 : 17,439.60 = 4,695.56 : x
  2. Step 2: Convert to fraction form
    11,621/17,439.60 = 4,695.56/x
  3. Step 3: Cross multiply
    11,621x = 17,439.60 × 4,695.56
  4. Step 4: Simplify right side
    11,621x = 81,888,688.18
  5. Step 5: Solve for x
    x = 81,888,688.18/11,621
  6. Step 6: Final answer
    x = 7,046.61

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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.