Home / 13,677.85-20,514.75-3,816.37

Finding the Fourth Proportional to 13,677.85, 20,514.75 and 3,816.37

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Solution

The fourth proportional to 13,677.85, 20,514.75 and 3,816.37 is: 5,723.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.85 : 20,514.75 = 3,816.37 : x
  2. Step 2: Convert to fraction form
    13,677.85/20,514.75 = 3,816.37/x
  3. Step 3: Cross multiply
    13,677.85x = 20,514.75 × 3,816.37
  4. Step 4: Simplify right side
    13,677.85x = 78,291,876.46
  5. Step 5: Solve for x
    x = 78,291,876.46/13,677.85
  6. Step 6: Final answer
    x = 5,723.99

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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.