Home / 11,120.91-16,681.56-3,723.99

Finding the Fourth Proportional to 11,120.91, 16,681.56 and 3,723.99

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Solution

The fourth proportional to 11,120.91, 16,681.56 and 3,723.99 is: 5,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.91 : 16,681.56 = 3,723.99 : x
  2. Step 2: Convert to fraction form
    11,120.91/16,681.56 = 3,723.99/x
  3. Step 3: Cross multiply
    11,120.91x = 16,681.56 × 3,723.99
  4. Step 4: Simplify right side
    11,120.91x = 62,121,962.62
  5. Step 5: Solve for x
    x = 62,121,962.62/11,120.91
  6. Step 6: Final answer
    x = 5,586.05

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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.