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Finding the Fourth Proportional to 8,772.46, 13,127.42 and 7,028.66

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Solution

The fourth proportional to 8,772.46, 13,127.42 and 7,028.66 is: 10,517.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.46 : 13,127.42 = 7,028.66 : x
  2. Step 2: Convert to fraction form
    8,772.46/13,127.42 = 7,028.66/x
  3. Step 3: Cross multiply
    8,772.46x = 13,127.42 × 7,028.66
  4. Step 4: Simplify right side
    8,772.46x = 92,268,222.25
  5. Step 5: Solve for x
    x = 92,268,222.25/8,772.46
  6. Step 6: Final answer
    x = 10,517.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.