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Finding the Fourth Proportional to 8,930.88, 12,326.11 and 5,153.36

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Solution

The fourth proportional to 8,930.88, 12,326.11 and 5,153.36 is: 7,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.88 : 12,326.11 = 5,153.36 : x
  2. Step 2: Convert to fraction form
    8,930.88/12,326.11 = 5,153.36/x
  3. Step 3: Cross multiply
    8,930.88x = 12,326.11 × 5,153.36
  4. Step 4: Simplify right side
    8,930.88x = 63,520,807.72
  5. Step 5: Solve for x
    x = 63,520,807.72/8,930.88
  6. Step 6: Final answer
    x = 7,112.49

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