Home / 18,865.24-28,300.84-6,211.04

Finding the Fourth Proportional to 18,865.24, 28,300.84 and 6,211.04

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Solution

The fourth proportional to 18,865.24, 28,300.84 and 6,211.04 is: 9,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.24 : 28,300.84 = 6,211.04 : x
  2. Step 2: Convert to fraction form
    18,865.24/28,300.84 = 6,211.04/x
  3. Step 3: Cross multiply
    18,865.24x = 28,300.84 × 6,211.04
  4. Step 4: Simplify right side
    18,865.24x = 175,777,649.27
  5. Step 5: Solve for x
    x = 175,777,649.27/18,865.24
  6. Step 6: Final answer
    x = 9,317.54

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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.