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Finding the Fourth Proportional to 8,784.57, 13,168.40 and 5,083.41

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Solution

The fourth proportional to 8,784.57, 13,168.40 and 5,083.41 is: 7,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.57 : 13,168.40 = 5,083.41 : x
  2. Step 2: Convert to fraction form
    8,784.57/13,168.40 = 5,083.41/x
  3. Step 3: Cross multiply
    8,784.57x = 13,168.40 × 5,083.41
  4. Step 4: Simplify right side
    8,784.57x = 66,940,350.83
  5. Step 5: Solve for x
    x = 66,940,350.83/8,784.57
  6. Step 6: Final answer
    x = 7,620.22

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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.