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Finding the Fourth Proportional to 19,074, 28,617.32 and 7,387.32

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Solution

The fourth proportional to 19,074, 28,617.32 and 7,387.32 is: 11,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074 : 28,617.32 = 7,387.32 : x
  2. Step 2: Convert to fraction form
    19,074/28,617.32 = 7,387.32/x
  3. Step 3: Cross multiply
    19,074x = 28,617.32 × 7,387.32
  4. Step 4: Simplify right side
    19,074x = 211,405,300.38
  5. Step 5: Solve for x
    x = 211,405,300.38/19,074
  6. Step 6: Final answer
    x = 11,083.43

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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.