Home / 9,933.85-13,704.80-6,399.11

Finding the Fourth Proportional to 9,933.85, 13,704.80 and 6,399.11

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Solution

The fourth proportional to 9,933.85, 13,704.80 and 6,399.11 is: 8,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,933.85 : 13,704.80 = 6,399.11 : x
  2. Step 2: Convert to fraction form
    9,933.85/13,704.80 = 6,399.11/x
  3. Step 3: Cross multiply
    9,933.85x = 13,704.80 × 6,399.11
  4. Step 4: Simplify right side
    9,933.85x = 87,698,522.73
  5. Step 5: Solve for x
    x = 87,698,522.73/9,933.85
  6. Step 6: Final answer
    x = 8,828.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.