Home / 13,966.75-20,950.33-3,436.78

Finding the Fourth Proportional to 13,966.75, 20,950.33 and 3,436.78

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Solution

The fourth proportional to 13,966.75, 20,950.33 and 3,436.78 is: 5,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.75 : 20,950.33 = 3,436.78 : x
  2. Step 2: Convert to fraction form
    13,966.75/20,950.33 = 3,436.78/x
  3. Step 3: Cross multiply
    13,966.75x = 20,950.33 × 3,436.78
  4. Step 4: Simplify right side
    13,966.75x = 72,001,570.39
  5. Step 5: Solve for x
    x = 72,001,570.39/13,966.75
  6. Step 6: Final answer
    x = 5,155.21

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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.