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Finding the Fourth Proportional to 14,663.88, 20,235.96 and 8,376.12

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Solution

The fourth proportional to 14,663.88, 20,235.96 and 8,376.12 is: 11,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.88 : 20,235.96 = 8,376.12 : x
  2. Step 2: Convert to fraction form
    14,663.88/20,235.96 = 8,376.12/x
  3. Step 3: Cross multiply
    14,663.88x = 20,235.96 × 8,376.12
  4. Step 4: Simplify right side
    14,663.88x = 169,498,829.28
  5. Step 5: Solve for x
    x = 169,498,829.28/14,663.88
  6. Step 6: Final answer
    x = 11,558.93

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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.