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Finding the Fourth Proportional to 18,199.35, 27,300.20 and 5,719.89

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Solution

The fourth proportional to 18,199.35, 27,300.20 and 5,719.89 is: 8,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.35 : 27,300.20 = 5,719.89 : x
  2. Step 2: Convert to fraction form
    18,199.35/27,300.20 = 5,719.89/x
  3. Step 3: Cross multiply
    18,199.35x = 27,300.20 × 5,719.89
  4. Step 4: Simplify right side
    18,199.35x = 156,154,140.98
  5. Step 5: Solve for x
    x = 156,154,140.98/18,199.35
  6. Step 6: Final answer
    x = 8,580.20

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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.