Home / 13,395.70-20,085.45-5,998.78

Finding the Fourth Proportional to 13,395.70, 20,085.45 and 5,998.78

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Solution

The fourth proportional to 13,395.70, 20,085.45 and 5,998.78 is: 8,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.70 : 20,085.45 = 5,998.78 : x
  2. Step 2: Convert to fraction form
    13,395.70/20,085.45 = 5,998.78/x
  3. Step 3: Cross multiply
    13,395.70x = 20,085.45 × 5,998.78
  4. Step 4: Simplify right side
    13,395.70x = 120,488,195.75
  5. Step 5: Solve for x
    x = 120,488,195.75/13,395.70
  6. Step 6: Final answer
    x = 8,994.54

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1.5x scale

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.