Home / 13,819.23-20,722.37-4,578.75

Finding the Fourth Proportional to 13,819.23, 20,722.37 and 4,578.75

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Solution

The fourth proportional to 13,819.23, 20,722.37 and 4,578.75 is: 6,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.23 : 20,722.37 = 4,578.75 : x
  2. Step 2: Convert to fraction form
    13,819.23/20,722.37 = 4,578.75/x
  3. Step 3: Cross multiply
    13,819.23x = 20,722.37 × 4,578.75
  4. Step 4: Simplify right side
    13,819.23x = 94,882,528.74
  5. Step 5: Solve for x
    x = 94,882,528.74/13,819.23
  6. Step 6: Final answer
    x = 6,865.98

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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.