Home / 13,628.54-20,442.76-3,767.80

Finding the Fourth Proportional to 13,628.54, 20,442.76 and 3,767.80

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Solution

The fourth proportional to 13,628.54, 20,442.76 and 3,767.80 is: 5,651.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.54 : 20,442.76 = 3,767.80 : x
  2. Step 2: Convert to fraction form
    13,628.54/20,442.76 = 3,767.80/x
  3. Step 3: Cross multiply
    13,628.54x = 20,442.76 × 3,767.80
  4. Step 4: Simplify right side
    13,628.54x = 77,024,231.13
  5. Step 5: Solve for x
    x = 77,024,231.13/13,628.54
  6. Step 6: Final answer
    x = 5,651.69

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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.