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Finding the Fourth Proportional to 12,334.60, 18,516.30 and 12,248.20

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Solution

The fourth proportional to 12,334.60, 18,516.30 and 12,248.20 is: 18,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,334.60 : 18,516.30 = 12,248.20 : x
  2. Step 2: Convert to fraction form
    12,334.60/18,516.30 = 12,248.20/x
  3. Step 3: Cross multiply
    12,334.60x = 18,516.30 × 12,248.20
  4. Step 4: Simplify right side
    12,334.60x = 226,791,345.66
  5. Step 5: Solve for x
    x = 226,791,345.66/12,334.60
  6. Step 6: Final answer
    x = 18,386.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.