Home / 19,891.68-29,839.95-6,747.81

Finding the Fourth Proportional to 19,891.68, 29,839.95 and 6,747.81

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Solution

The fourth proportional to 19,891.68, 29,839.95 and 6,747.81 is: 10,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.68 : 29,839.95 = 6,747.81 : x
  2. Step 2: Convert to fraction form
    19,891.68/29,839.95 = 6,747.81/x
  3. Step 3: Cross multiply
    19,891.68x = 29,839.95 × 6,747.81
  4. Step 4: Simplify right side
    19,891.68x = 201,354,313.01
  5. Step 5: Solve for x
    x = 201,354,313.01/19,891.68
  6. Step 6: Final answer
    x = 10,122.54

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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.