Home / 19,868.49-29,806.84-6,721.89

Finding the Fourth Proportional to 19,868.49, 29,806.84 and 6,721.89

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Solution

The fourth proportional to 19,868.49, 29,806.84 and 6,721.89 is: 10,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.49 : 29,806.84 = 6,721.89 : x
  2. Step 2: Convert to fraction form
    19,868.49/29,806.84 = 6,721.89/x
  3. Step 3: Cross multiply
    19,868.49x = 29,806.84 × 6,721.89
  4. Step 4: Simplify right side
    19,868.49x = 200,358,158.54
  5. Step 5: Solve for x
    x = 200,358,158.54/19,868.49
  6. Step 6: Final answer
    x = 10,084.22

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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.