Home / 13,858.75-20,788.13-5,542.48

Finding the Fourth Proportional to 13,858.75, 20,788.13 and 5,542.48

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Solution

The fourth proportional to 13,858.75, 20,788.13 and 5,542.48 is: 8,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.75 : 20,788.13 = 5,542.48 : x
  2. Step 2: Convert to fraction form
    13,858.75/20,788.13 = 5,542.48/x
  3. Step 3: Cross multiply
    13,858.75x = 20,788.13 × 5,542.48
  4. Step 4: Simplify right side
    13,858.75x = 115,217,794.76
  5. Step 5: Solve for x
    x = 115,217,794.76/13,858.75
  6. Step 6: Final answer
    x = 8,313.72

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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.