Home / 11,380.57-17,043.14-7,861.19

Finding the Fourth Proportional to 11,380.57, 17,043.14 and 7,861.19

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Solution

The fourth proportional to 11,380.57, 17,043.14 and 7,861.19 is: 11,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.57 : 17,043.14 = 7,861.19 : x
  2. Step 2: Convert to fraction form
    11,380.57/17,043.14 = 7,861.19/x
  3. Step 3: Cross multiply
    11,380.57x = 17,043.14 × 7,861.19
  4. Step 4: Simplify right side
    11,380.57x = 133,979,296.17
  5. Step 5: Solve for x
    x = 133,979,296.17/11,380.57
  6. Step 6: Final answer
    x = 11,772.64

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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.