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Finding the Fourth Proportional to 16,840.47, 25,267.20 and 6,449.79

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Solution

The fourth proportional to 16,840.47, 25,267.20 and 6,449.79 is: 9,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,840.47 : 25,267.20 = 6,449.79 : x
  2. Step 2: Convert to fraction form
    16,840.47/25,267.20 = 6,449.79/x
  3. Step 3: Cross multiply
    16,840.47x = 25,267.20 × 6,449.79
  4. Step 4: Simplify right side
    16,840.47x = 162,968,133.89
  5. Step 5: Solve for x
    x = 162,968,133.89/16,840.47
  6. Step 6: Final answer
    x = 9,677.17

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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.