Home / 11,887.18-17,815.03-6,328.55

Finding the Fourth Proportional to 11,887.18, 17,815.03 and 6,328.55

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Solution

The fourth proportional to 11,887.18, 17,815.03 and 6,328.55 is: 9,484.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.18 : 17,815.03 = 6,328.55 : x
  2. Step 2: Convert to fraction form
    11,887.18/17,815.03 = 6,328.55/x
  3. Step 3: Cross multiply
    11,887.18x = 17,815.03 × 6,328.55
  4. Step 4: Simplify right side
    11,887.18x = 112,743,336.82
  5. Step 5: Solve for x
    x = 112,743,336.82/11,887.18
  6. Step 6: Final answer
    x = 9,484.45

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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.