Home / 13,632.59-20,448.91-3,771.90

Finding the Fourth Proportional to 13,632.59, 20,448.91 and 3,771.90

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Solution

The fourth proportional to 13,632.59, 20,448.91 and 3,771.90 is: 5,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.59 : 20,448.91 = 3,771.90 : x
  2. Step 2: Convert to fraction form
    13,632.59/20,448.91 = 3,771.90/x
  3. Step 3: Cross multiply
    13,632.59x = 20,448.91 × 3,771.90
  4. Step 4: Simplify right side
    13,632.59x = 77,131,243.63
  5. Step 5: Solve for x
    x = 77,131,243.63/13,632.59
  6. Step 6: Final answer
    x = 5,657.86

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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.