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Finding the Fourth Proportional to 9,080.16, 12,550.32 and 8,380.32

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Solution

The fourth proportional to 9,080.16, 12,550.32 and 8,380.32 is: 11,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,080.16 : 12,550.32 = 8,380.32 : x
  2. Step 2: Convert to fraction form
    9,080.16/12,550.32 = 8,380.32/x
  3. Step 3: Cross multiply
    9,080.16x = 12,550.32 × 8,380.32
  4. Step 4: Simplify right side
    9,080.16x = 105,175,697.70
  5. Step 5: Solve for x
    x = 105,175,697.70/9,080.16
  6. Step 6: Final answer
    x = 11,583.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.