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Finding the Fourth Proportional to 9,080.90, 12,533.10 and 8,487.98

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Solution

The fourth proportional to 9,080.90, 12,533.10 and 8,487.98 is: 11,714.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,080.90 : 12,533.10 = 8,487.98 : x
  2. Step 2: Convert to fraction form
    9,080.90/12,533.10 = 8,487.98/x
  3. Step 3: Cross multiply
    9,080.90x = 12,533.10 × 8,487.98
  4. Step 4: Simplify right side
    9,080.90x = 106,380,702.14
  5. Step 5: Solve for x
    x = 106,380,702.14/9,080.90
  6. Step 6: Final answer
    x = 11,714.78

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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.