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Finding the Fourth Proportional to 19,199.50, 28,800.90 and 5,348.50

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Solution

The fourth proportional to 19,199.50, 28,800.90 and 5,348.50 is: 8,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.50 : 28,800.90 = 5,348.50 : x
  2. Step 2: Convert to fraction form
    19,199.50/28,800.90 = 5,348.50/x
  3. Step 3: Cross multiply
    19,199.50x = 28,800.90 × 5,348.50
  4. Step 4: Simplify right side
    19,199.50x = 154,041,613.65
  5. Step 5: Solve for x
    x = 154,041,613.65/19,199.50
  6. Step 6: Final answer
    x = 8,023.21

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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.