Home / 18,684.98-28,029.09-5,358.04

Finding the Fourth Proportional to 18,684.98, 28,029.09 and 5,358.04

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Solution

The fourth proportional to 18,684.98, 28,029.09 and 5,358.04 is: 8,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.98 : 28,029.09 = 5,358.04 : x
  2. Step 2: Convert to fraction form
    18,684.98/28,029.09 = 5,358.04/x
  3. Step 3: Cross multiply
    18,684.98x = 28,029.09 × 5,358.04
  4. Step 4: Simplify right side
    18,684.98x = 150,180,985.38
  5. Step 5: Solve for x
    x = 150,180,985.38/18,684.98
  6. Step 6: Final answer
    x = 8,037.52

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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.