Home / 11,965.68-17,943.60-5,390.10

Finding the Fourth Proportional to 11,965.68, 17,943.60 and 5,390.10

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Solution

The fourth proportional to 11,965.68, 17,943.60 and 5,390.10 is: 8,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.68 : 17,943.60 = 5,390.10 : x
  2. Step 2: Convert to fraction form
    11,965.68/17,943.60 = 5,390.10/x
  3. Step 3: Cross multiply
    11,965.68x = 17,943.60 × 5,390.10
  4. Step 4: Simplify right side
    11,965.68x = 96,717,798.36
  5. Step 5: Solve for x
    x = 96,717,798.36/11,965.68
  6. Step 6: Final answer
    x = 8,082.93

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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.