Home / 13,751.10-20,621.42-5,857.35

Finding the Fourth Proportional to 13,751.10, 20,621.42 and 5,857.35

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Solution

The fourth proportional to 13,751.10, 20,621.42 and 5,857.35 is: 8,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.10 : 20,621.42 = 5,857.35 : x
  2. Step 2: Convert to fraction form
    13,751.10/20,621.42 = 5,857.35/x
  3. Step 3: Cross multiply
    13,751.10x = 20,621.42 × 5,857.35
  4. Step 4: Simplify right side
    13,751.10x = 120,786,789.78
  5. Step 5: Solve for x
    x = 120,786,789.78/13,751.10
  6. Step 6: Final answer
    x = 8,783.79

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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.