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Finding the Fourth Proportional to 14,098.42, 19,456.68 and 8,129.98

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Solution

The fourth proportional to 14,098.42, 19,456.68 and 8,129.98 is: 11,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,098.42 : 19,456.68 = 8,129.98 : x
  2. Step 2: Convert to fraction form
    14,098.42/19,456.68 = 8,129.98/x
  3. Step 3: Cross multiply
    14,098.42x = 19,456.68 × 8,129.98
  4. Step 4: Simplify right side
    14,098.42x = 158,182,419.27
  5. Step 5: Solve for x
    x = 158,182,419.27/14,098.42
  6. Step 6: Final answer
    x = 11,219.87

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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.