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Finding the Fourth Proportional to 18,847, 28,271.04 and 4,996

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Solution

The fourth proportional to 18,847, 28,271.04 and 4,996 is: 7,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847 : 28,271.04 = 4,996 : x
  2. Step 2: Convert to fraction form
    18,847/28,271.04 = 4,996/x
  3. Step 3: Cross multiply
    18,847x = 28,271.04 × 4,996
  4. Step 4: Simplify right side
    18,847x = 141,242,115.84
  5. Step 5: Solve for x
    x = 141,242,115.84/18,847
  6. Step 6: Final answer
    x = 7,494.14

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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.