Home / 11,975.85-17,966.59-3,655.87

Finding the Fourth Proportional to 11,975.85, 17,966.59 and 3,655.87

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Solution

The fourth proportional to 11,975.85, 17,966.59 and 3,655.87 is: 5,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.85 : 17,966.59 = 3,655.87 : x
  2. Step 2: Convert to fraction form
    11,975.85/17,966.59 = 3,655.87/x
  3. Step 3: Cross multiply
    11,975.85x = 17,966.59 × 3,655.87
  4. Step 4: Simplify right side
    11,975.85x = 65,683,463.33
  5. Step 5: Solve for x
    x = 65,683,463.33/11,975.85
  6. Step 6: Final answer
    x = 5,484.66

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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.