Home / 13,434.89-20,151.11-3,573.79

Finding the Fourth Proportional to 13,434.89, 20,151.11 and 3,573.79

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Solution

The fourth proportional to 13,434.89, 20,151.11 and 3,573.79 is: 5,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.89 : 20,151.11 = 3,573.79 : x
  2. Step 2: Convert to fraction form
    13,434.89/20,151.11 = 3,573.79/x
  3. Step 3: Cross multiply
    13,434.89x = 20,151.11 × 3,573.79
  4. Step 4: Simplify right side
    13,434.89x = 72,015,793.96
  5. Step 5: Solve for x
    x = 72,015,793.96/13,434.89
  6. Step 6: Final answer
    x = 5,360.36

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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.