Home / 13,810.70-20,719.88-6,792.68

Finding the Fourth Proportional to 13,810.70, 20,719.88 and 6,792.68

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Solution

The fourth proportional to 13,810.70, 20,719.88 and 6,792.68 is: 10,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.70 : 20,719.88 = 6,792.68 : x
  2. Step 2: Convert to fraction form
    13,810.70/20,719.88 = 6,792.68/x
  3. Step 3: Cross multiply
    13,810.70x = 20,719.88 × 6,792.68
  4. Step 4: Simplify right side
    13,810.70x = 140,743,514.48
  5. Step 5: Solve for x
    x = 140,743,514.48/13,810.70
  6. Step 6: Final answer
    x = 10,190.90

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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.