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Finding the Fourth Proportional to 19,314.64, 28,977.04 and 6,167.28

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Solution

The fourth proportional to 19,314.64, 28,977.04 and 6,167.28 is: 9,252.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.64 : 28,977.04 = 6,167.28 : x
  2. Step 2: Convert to fraction form
    19,314.64/28,977.04 = 6,167.28/x
  3. Step 3: Cross multiply
    19,314.64x = 28,977.04 × 6,167.28
  4. Step 4: Simplify right side
    19,314.64x = 178,709,519.25
  5. Step 5: Solve for x
    x = 178,709,519.25/19,314.64
  6. Step 6: Final answer
    x = 9,252.54

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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.