Home / 13,764.12-20,639.98-3,901.06

Finding the Fourth Proportional to 13,764.12, 20,639.98 and 3,901.06

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Solution

The fourth proportional to 13,764.12, 20,639.98 and 3,901.06 is: 5,849.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.12 : 20,639.98 = 3,901.06 : x
  2. Step 2: Convert to fraction form
    13,764.12/20,639.98 = 3,901.06/x
  3. Step 3: Cross multiply
    13,764.12x = 20,639.98 × 3,901.06
  4. Step 4: Simplify right side
    13,764.12x = 80,517,800.38
  5. Step 5: Solve for x
    x = 80,517,800.38/13,764.12
  6. Step 6: Final answer
    x = 5,849.83

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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.