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Finding the Fourth Proportional to 8,080.88, 12,124.74 and 3,153.98

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Solution

The fourth proportional to 8,080.88, 12,124.74 and 3,153.98 is: 4,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.88 : 12,124.74 = 3,153.98 : x
  2. Step 2: Convert to fraction form
    8,080.88/12,124.74 = 3,153.98/x
  3. Step 3: Cross multiply
    8,080.88x = 12,124.74 × 3,153.98
  4. Step 4: Simplify right side
    8,080.88x = 38,241,187.47
  5. Step 5: Solve for x
    x = 38,241,187.47/8,080.88
  6. Step 6: Final answer
    x = 4,732.30

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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.