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Finding the Fourth Proportional to 18,850.37, 28,237.28 and 8,839.98

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Solution

The fourth proportional to 18,850.37, 28,237.28 and 8,839.98 is: 13,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.37 : 28,237.28 = 8,839.98 : x
  2. Step 2: Convert to fraction form
    18,850.37/28,237.28 = 8,839.98/x
  3. Step 3: Cross multiply
    18,850.37x = 28,237.28 × 8,839.98
  4. Step 4: Simplify right side
    18,850.37x = 249,616,946.25
  5. Step 5: Solve for x
    x = 249,616,946.25/18,850.37
  6. Step 6: Final answer
    x = 13,242.02

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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.