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Finding the Fourth Proportional to 12,226.60, 18,347.10 and 4,434.40

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Solution

The fourth proportional to 12,226.60, 18,347.10 and 4,434.40 is: 6,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.60 : 18,347.10 = 4,434.40 : x
  2. Step 2: Convert to fraction form
    12,226.60/18,347.10 = 4,434.40/x
  3. Step 3: Cross multiply
    12,226.60x = 18,347.10 × 4,434.40
  4. Step 4: Simplify right side
    12,226.60x = 81,358,380.24
  5. Step 5: Solve for x
    x = 81,358,380.24/12,226.60
  6. Step 6: Final answer
    x = 6,654.21

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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.