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Finding the Fourth Proportional to 14,463.18, 21,690.50 and 6,143.12

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Solution

The fourth proportional to 14,463.18, 21,690.50 and 6,143.12 is: 9,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,463.18 : 21,690.50 = 6,143.12 : x
  2. Step 2: Convert to fraction form
    14,463.18/21,690.50 = 6,143.12/x
  3. Step 3: Cross multiply
    14,463.18x = 21,690.50 × 6,143.12
  4. Step 4: Simplify right side
    14,463.18x = 133,247,344.36
  5. Step 5: Solve for x
    x = 133,247,344.36/14,463.18
  6. Step 6: Final answer
    x = 9,212.87

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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.