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Finding the Fourth Proportional to 15,093.20, 20,827.65 and 9,427.61

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Solution

The fourth proportional to 15,093.20, 20,827.65 and 9,427.61 is: 13,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,093.20 : 20,827.65 = 9,427.61 : x
  2. Step 2: Convert to fraction form
    15,093.20/20,827.65 = 9,427.61/x
  3. Step 3: Cross multiply
    15,093.20x = 20,827.65 × 9,427.61
  4. Step 4: Simplify right side
    15,093.20x = 196,354,857.28
  5. Step 5: Solve for x
    x = 196,354,857.28/15,093.20
  6. Step 6: Final answer
    x = 13,009.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.