Home / 14,480.70-21,721.46-5,119.40

Finding the Fourth Proportional to 14,480.70, 21,721.46 and 5,119.40

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Solution

The fourth proportional to 14,480.70, 21,721.46 and 5,119.40 is: 7,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.70 : 21,721.46 = 5,119.40 : x
  2. Step 2: Convert to fraction form
    14,480.70/21,721.46 = 5,119.40/x
  3. Step 3: Cross multiply
    14,480.70x = 21,721.46 × 5,119.40
  4. Step 4: Simplify right side
    14,480.70x = 111,200,708.12
  5. Step 5: Solve for x
    x = 111,200,708.12/14,480.70
  6. Step 6: Final answer
    x = 7,679.24

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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.