Home / 19,137.04-28,706.10-5,286.04

Finding the Fourth Proportional to 19,137.04, 28,706.10 and 5,286.04

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Solution

The fourth proportional to 19,137.04, 28,706.10 and 5,286.04 is: 7,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.04 : 28,706.10 = 5,286.04 : x
  2. Step 2: Convert to fraction form
    19,137.04/28,706.10 = 5,286.04/x
  3. Step 3: Cross multiply
    19,137.04x = 28,706.10 × 5,286.04
  4. Step 4: Simplify right side
    19,137.04x = 151,741,592.84
  5. Step 5: Solve for x
    x = 151,741,592.84/19,137.04
  6. Step 6: Final answer
    x = 7,929.21

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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.