Home / 13,906.48-20,859.53-3,376.58

Finding the Fourth Proportional to 13,906.48, 20,859.53 and 3,376.58

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Solution

The fourth proportional to 13,906.48, 20,859.53 and 3,376.58 is: 5,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.48 : 20,859.53 = 3,376.58 : x
  2. Step 2: Convert to fraction form
    13,906.48/20,859.53 = 3,376.58/x
  3. Step 3: Cross multiply
    13,906.48x = 20,859.53 × 3,376.58
  4. Step 4: Simplify right side
    13,906.48x = 70,433,871.81
  5. Step 5: Solve for x
    x = 70,433,871.81/13,906.48
  6. Step 6: Final answer
    x = 5,064.83

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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.