Home / 10,585.53-15,880.41-3,189.69

Finding the Fourth Proportional to 10,585.53, 15,880.41 and 3,189.69

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Solution

The fourth proportional to 10,585.53, 15,880.41 and 3,189.69 is: 4,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,585.53 : 15,880.41 = 3,189.69 : x
  2. Step 2: Convert to fraction form
    10,585.53/15,880.41 = 3,189.69/x
  3. Step 3: Cross multiply
    10,585.53x = 15,880.41 × 3,189.69
  4. Step 4: Simplify right side
    10,585.53x = 50,653,584.97
  5. Step 5: Solve for x
    x = 50,653,584.97/10,585.53
  6. Step 6: Final answer
    x = 4,785.17

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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.