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Finding the Fourth Proportional to 16,802.64, 25,207.61 and 5,115.55

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Solution

The fourth proportional to 16,802.64, 25,207.61 and 5,115.55 is: 7,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,802.64 : 25,207.61 = 5,115.55 : x
  2. Step 2: Convert to fraction form
    16,802.64/25,207.61 = 5,115.55/x
  3. Step 3: Cross multiply
    16,802.64x = 25,207.61 × 5,115.55
  4. Step 4: Simplify right side
    16,802.64x = 128,950,833.63
  5. Step 5: Solve for x
    x = 128,950,833.63/16,802.64
  6. Step 6: Final answer
    x = 7,674.44

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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.