Home / 13,898.28-20,853.21-5,584.21

Finding the Fourth Proportional to 13,898.28, 20,853.21 and 5,584.21

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Solution

The fourth proportional to 13,898.28, 20,853.21 and 5,584.21 is: 8,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.28 : 20,853.21 = 5,584.21 : x
  2. Step 2: Convert to fraction form
    13,898.28/20,853.21 = 5,584.21/x
  3. Step 3: Cross multiply
    13,898.28x = 20,853.21 × 5,584.21
  4. Step 4: Simplify right side
    13,898.28x = 116,448,599.55
  5. Step 5: Solve for x
    x = 116,448,599.55/13,898.28
  6. Step 6: Final answer
    x = 8,378.63

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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.