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Finding the Fourth Proportional to 10,018, 15,027.20 and 3,092.50

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Solution

The fourth proportional to 10,018, 15,027.20 and 3,092.50 is: 4,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018 : 15,027.20 = 3,092.50 : x
  2. Step 2: Convert to fraction form
    10,018/15,027.20 = 3,092.50/x
  3. Step 3: Cross multiply
    10,018x = 15,027.20 × 3,092.50
  4. Step 4: Simplify right side
    10,018x = 46,471,616
  5. Step 5: Solve for x
    x = 46,471,616/10,018
  6. Step 6: Final answer
    x = 4,638.81

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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.