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Finding the Fourth Proportional to 8,805, 12,151.62 and 5,029.32

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Solution

The fourth proportional to 8,805, 12,151.62 and 5,029.32 is: 6,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805 : 12,151.62 = 5,029.32 : x
  2. Step 2: Convert to fraction form
    8,805/12,151.62 = 5,029.32/x
  3. Step 3: Cross multiply
    8,805x = 12,151.62 × 5,029.32
  4. Step 4: Simplify right side
    8,805x = 61,114,385.50
  5. Step 5: Solve for x
    x = 61,114,385.50/8,805
  6. Step 6: Final answer
    x = 6,940.87

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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.