Home / 13,839.24-20,704.32-10,695.36

Finding the Fourth Proportional to 13,839.24, 20,704.32 and 10,695.36

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Solution

The fourth proportional to 13,839.24, 20,704.32 and 10,695.36 is: 16,000.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.24 : 20,704.32 = 10,695.36 : x
  2. Step 2: Convert to fraction form
    13,839.24/20,704.32 = 10,695.36/x
  3. Step 3: Cross multiply
    13,839.24x = 20,704.32 × 10,695.36
  4. Step 4: Simplify right side
    13,839.24x = 221,440,155.96
  5. Step 5: Solve for x
    x = 221,440,155.96/13,839.24
  6. Step 6: Final answer
    x = 16,000.89

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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.