Home / 11,817.36-17,719.83-5,240.70

Finding the Fourth Proportional to 11,817.36, 17,719.83 and 5,240.70

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Solution

The fourth proportional to 11,817.36, 17,719.83 and 5,240.70 is: 7,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.36 : 17,719.83 = 5,240.70 : x
  2. Step 2: Convert to fraction form
    11,817.36/17,719.83 = 5,240.70/x
  3. Step 3: Cross multiply
    11,817.36x = 17,719.83 × 5,240.70
  4. Step 4: Simplify right side
    11,817.36x = 92,864,313.08
  5. Step 5: Solve for x
    x = 92,864,313.08/11,817.36
  6. Step 6: Final answer
    x = 7,858.30

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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.