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Finding the Fourth Proportional to 14,939.65, 20,616.55 and 8,225.14

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Solution

The fourth proportional to 14,939.65, 20,616.55 and 8,225.14 is: 11,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.65 : 20,616.55 = 8,225.14 : x
  2. Step 2: Convert to fraction form
    14,939.65/20,616.55 = 8,225.14/x
  3. Step 3: Cross multiply
    14,939.65x = 20,616.55 × 8,225.14
  4. Step 4: Simplify right side
    14,939.65x = 169,573,937.96
  5. Step 5: Solve for x
    x = 169,573,937.96/14,939.65
  6. Step 6: Final answer
    x = 11,350.60

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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.