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Finding the Fourth Proportional to 16,911.40, 25,351.74 and 6,530.92

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Solution

The fourth proportional to 16,911.40, 25,351.74 and 6,530.92 is: 9,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.40 : 25,351.74 = 6,530.92 : x
  2. Step 2: Convert to fraction form
    16,911.40/25,351.74 = 6,530.92/x
  3. Step 3: Cross multiply
    16,911.40x = 25,351.74 × 6,530.92
  4. Step 4: Simplify right side
    16,911.40x = 165,570,185.80
  5. Step 5: Solve for x
    x = 165,570,185.80/16,911.40
  6. Step 6: Final answer
    x = 9,790.45

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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.