Home / 13,474.86-20,212.21-3,479.59

Finding the Fourth Proportional to 13,474.86, 20,212.21 and 3,479.59

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Solution

The fourth proportional to 13,474.86, 20,212.21 and 3,479.59 is: 5,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.86 : 20,212.21 = 3,479.59 : x
  2. Step 2: Convert to fraction form
    13,474.86/20,212.21 = 3,479.59/x
  3. Step 3: Cross multiply
    13,474.86x = 20,212.21 × 3,479.59
  4. Step 4: Simplify right side
    13,474.86x = 70,330,203.79
  5. Step 5: Solve for x
    x = 70,330,203.79/13,474.86
  6. Step 6: Final answer
    x = 5,219.36

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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.