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Finding the Fourth Proportional to 16,210.60, 22,369.98 and 9,138.49

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Solution

The fourth proportional to 16,210.60, 22,369.98 and 9,138.49 is: 12,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,210.60 : 22,369.98 = 9,138.49 : x
  2. Step 2: Convert to fraction form
    16,210.60/22,369.98 = 9,138.49/x
  3. Step 3: Cross multiply
    16,210.60x = 22,369.98 × 9,138.49
  4. Step 4: Simplify right side
    16,210.60x = 204,427,838.53
  5. Step 5: Solve for x
    x = 204,427,838.53/16,210.60
  6. Step 6: Final answer
    x = 12,610.75

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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.