Home / 13,390.35-20,086.51-3,529.56

Finding the Fourth Proportional to 13,390.35, 20,086.51 and 3,529.56

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Solution

The fourth proportional to 13,390.35, 20,086.51 and 3,529.56 is: 5,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.35 : 20,086.51 = 3,529.56 : x
  2. Step 2: Convert to fraction form
    13,390.35/20,086.51 = 3,529.56/x
  3. Step 3: Cross multiply
    13,390.35x = 20,086.51 × 3,529.56
  4. Step 4: Simplify right side
    13,390.35x = 70,896,542.24
  5. Step 5: Solve for x
    x = 70,896,542.24/13,390.35
  6. Step 6: Final answer
    x = 5,294.60

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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.