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Finding the Fourth Proportional to 13,362.32, 18,446.28 and 8,893.40

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Solution

The fourth proportional to 13,362.32, 18,446.28 and 8,893.40 is: 12,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.32 : 18,446.28 = 8,893.40 : x
  2. Step 2: Convert to fraction form
    13,362.32/18,446.28 = 8,893.40/x
  3. Step 3: Cross multiply
    13,362.32x = 18,446.28 × 8,893.40
  4. Step 4: Simplify right side
    13,362.32x = 164,050,146.55
  5. Step 5: Solve for x
    x = 164,050,146.55/13,362.32
  6. Step 6: Final answer
    x = 12,277.07

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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.