Home / 13,875.87-20,819.28-6,079.22

Finding the Fourth Proportional to 13,875.87, 20,819.28 and 6,079.22

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Solution

The fourth proportional to 13,875.87, 20,819.28 and 6,079.22 is: 9,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.87 : 20,819.28 = 6,079.22 : x
  2. Step 2: Convert to fraction form
    13,875.87/20,819.28 = 6,079.22/x
  3. Step 3: Cross multiply
    13,875.87x = 20,819.28 × 6,079.22
  4. Step 4: Simplify right side
    13,875.87x = 126,564,945.94
  5. Step 5: Solve for x
    x = 126,564,945.94/13,875.87
  6. Step 6: Final answer
    x = 9,121.22

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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.