Home / 10,517.71-15,776.43-3,122.14

Finding the Fourth Proportional to 10,517.71, 15,776.43 and 3,122.14

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Solution

The fourth proportional to 10,517.71, 15,776.43 and 3,122.14 is: 4,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.71 : 15,776.43 = 3,122.14 : x
  2. Step 2: Convert to fraction form
    10,517.71/15,776.43 = 3,122.14/x
  3. Step 3: Cross multiply
    10,517.71x = 15,776.43 × 3,122.14
  4. Step 4: Simplify right side
    10,517.71x = 49,256,223.16
  5. Step 5: Solve for x
    x = 49,256,223.16/10,517.71
  6. Step 6: Final answer
    x = 4,683.17

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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.