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Finding the Fourth Proportional to 14,817.94, 20,449.36 and 8,530.31

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Solution

The fourth proportional to 14,817.94, 20,449.36 and 8,530.31 is: 11,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.94 : 20,449.36 = 8,530.31 : x
  2. Step 2: Convert to fraction form
    14,817.94/20,449.36 = 8,530.31/x
  3. Step 3: Cross multiply
    14,817.94x = 20,449.36 × 8,530.31
  4. Step 4: Simplify right side
    14,817.94x = 174,439,441.89
  5. Step 5: Solve for x
    x = 174,439,441.89/14,817.94
  6. Step 6: Final answer
    x = 11,772.18

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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.