Home / 18,834.12-28,255.50-6,353.78

Finding the Fourth Proportional to 18,834.12, 28,255.50 and 6,353.78

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Solution

The fourth proportional to 18,834.12, 28,255.50 and 6,353.78 is: 9,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.12 : 28,255.50 = 6,353.78 : x
  2. Step 2: Convert to fraction form
    18,834.12/28,255.50 = 6,353.78/x
  3. Step 3: Cross multiply
    18,834.12x = 28,255.50 × 6,353.78
  4. Step 4: Simplify right side
    18,834.12x = 179,529,089.51
  5. Step 5: Solve for x
    x = 179,529,089.51/18,834.12
  6. Step 6: Final answer
    x = 9,532.12

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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.