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Finding the Fourth Proportional to 8,114, 11,197.34 and 4,388

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Solution

The fourth proportional to 8,114, 11,197.34 and 4,388 is: 6,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114 : 11,197.34 = 4,388 : x
  2. Step 2: Convert to fraction form
    8,114/11,197.34 = 4,388/x
  3. Step 3: Cross multiply
    8,114x = 11,197.34 × 4,388
  4. Step 4: Simplify right side
    8,114x = 49,133,927.92
  5. Step 5: Solve for x
    x = 49,133,927.92/8,114
  6. Step 6: Final answer
    x = 6,055.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.