Home / 8,080.14-12,131.01-7,817.70

Finding the Fourth Proportional to 8,080.14, 12,131.01 and 7,817.70

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Solution

The fourth proportional to 8,080.14, 12,131.01 and 7,817.70 is: 11,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.14 : 12,131.01 = 7,817.70 : x
  2. Step 2: Convert to fraction form
    8,080.14/12,131.01 = 7,817.70/x
  3. Step 3: Cross multiply
    8,080.14x = 12,131.01 × 7,817.70
  4. Step 4: Simplify right side
    8,080.14x = 94,836,596.88
  5. Step 5: Solve for x
    x = 94,836,596.88/8,080.14
  6. Step 6: Final answer
    x = 11,737.00

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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.