Home / 13,425.89-20,131.11-5,533.85

Finding the Fourth Proportional to 13,425.89, 20,131.11 and 5,533.85

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Solution

The fourth proportional to 13,425.89, 20,131.11 and 5,533.85 is: 8,297.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.89 : 20,131.11 = 5,533.85 : x
  2. Step 2: Convert to fraction form
    13,425.89/20,131.11 = 5,533.85/x
  3. Step 3: Cross multiply
    13,425.89x = 20,131.11 × 5,533.85
  4. Step 4: Simplify right side
    13,425.89x = 111,402,543.07
  5. Step 5: Solve for x
    x = 111,402,543.07/13,425.89
  6. Step 6: Final answer
    x = 8,297.59

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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.