Home / 11,189.15-16,785.54-3,690.47

Finding the Fourth Proportional to 11,189.15, 16,785.54 and 3,690.47

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Solution

The fourth proportional to 11,189.15, 16,785.54 and 3,690.47 is: 5,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.15 : 16,785.54 = 3,690.47 : x
  2. Step 2: Convert to fraction form
    11,189.15/16,785.54 = 3,690.47/x
  3. Step 3: Cross multiply
    11,189.15x = 16,785.54 × 3,690.47
  4. Step 4: Simplify right side
    11,189.15x = 61,946,531.80
  5. Step 5: Solve for x
    x = 61,946,531.80/11,189.15
  6. Step 6: Final answer
    x = 5,536.30

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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.