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Finding the Fourth Proportional to 8,153.92, 12,210.90 and 7,365.04

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Solution

The fourth proportional to 8,153.92, 12,210.90 and 7,365.04 is: 11,029.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.92 : 12,210.90 = 7,365.04 : x
  2. Step 2: Convert to fraction form
    8,153.92/12,210.90 = 7,365.04/x
  3. Step 3: Cross multiply
    8,153.92x = 12,210.90 × 7,365.04
  4. Step 4: Simplify right side
    8,153.92x = 89,933,766.94
  5. Step 5: Solve for x
    x = 89,933,766.94/8,153.92
  6. Step 6: Final answer
    x = 11,029.51

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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.