Home / 11,975.52-17,965.36-3,655.20

Finding the Fourth Proportional to 11,975.52, 17,965.36 and 3,655.20

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Solution

The fourth proportional to 11,975.52, 17,965.36 and 3,655.20 is: 5,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.52 : 17,965.36 = 3,655.20 : x
  2. Step 2: Convert to fraction form
    11,975.52/17,965.36 = 3,655.20/x
  3. Step 3: Cross multiply
    11,975.52x = 17,965.36 × 3,655.20
  4. Step 4: Simplify right side
    11,975.52x = 65,666,983.87
  5. Step 5: Solve for x
    x = 65,666,983.87/11,975.52
  6. Step 6: Final answer
    x = 5,483.43

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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.