Home / 13,099.62-18,077.97-7,511.70

Finding the Fourth Proportional to 13,099.62, 18,077.97 and 7,511.70

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Solution

The fourth proportional to 13,099.62, 18,077.97 and 7,511.70 is: 10,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.62 : 18,077.97 = 7,511.70 : x
  2. Step 2: Convert to fraction form
    13,099.62/18,077.97 = 7,511.70/x
  3. Step 3: Cross multiply
    13,099.62x = 18,077.97 × 7,511.70
  4. Step 4: Simplify right side
    13,099.62x = 135,796,287.25
  5. Step 5: Solve for x
    x = 135,796,287.25/13,099.62
  6. Step 6: Final answer
    x = 10,366.43

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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.