Home / 11,189.63-16,781.02-3,691.81

Finding the Fourth Proportional to 11,189.63, 16,781.02 and 3,691.81

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Solution

The fourth proportional to 11,189.63, 16,781.02 and 3,691.81 is: 5,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.63 : 16,781.02 = 3,691.81 : x
  2. Step 2: Convert to fraction form
    11,189.63/16,781.02 = 3,691.81/x
  3. Step 3: Cross multiply
    11,189.63x = 16,781.02 × 3,691.81
  4. Step 4: Simplify right side
    11,189.63x = 61,952,337.45
  5. Step 5: Solve for x
    x = 61,952,337.45/11,189.63
  6. Step 6: Final answer
    x = 5,536.58

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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.