Home / 13,902.91-20,839.78-6,501.13

Finding the Fourth Proportional to 13,902.91, 20,839.78 and 6,501.13

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Solution

The fourth proportional to 13,902.91, 20,839.78 and 6,501.13 is: 9,744.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.91 : 20,839.78 = 6,501.13 : x
  2. Step 2: Convert to fraction form
    13,902.91/20,839.78 = 6,501.13/x
  3. Step 3: Cross multiply
    13,902.91x = 20,839.78 × 6,501.13
  4. Step 4: Simplify right side
    13,902.91x = 135,481,982.25
  5. Step 5: Solve for x
    x = 135,481,982.25/13,902.91
  6. Step 6: Final answer
    x = 9,744.87

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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.