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Finding the Fourth Proportional to 14,248.74, 19,663.22 and 7,961.12

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Solution

The fourth proportional to 14,248.74, 19,663.22 and 7,961.12 is: 10,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.74 : 19,663.22 = 7,961.12 : x
  2. Step 2: Convert to fraction form
    14,248.74/19,663.22 = 7,961.12/x
  3. Step 3: Cross multiply
    14,248.74x = 19,663.22 × 7,961.12
  4. Step 4: Simplify right side
    14,248.74x = 156,541,254.01
  5. Step 5: Solve for x
    x = 156,541,254.01/14,248.74
  6. Step 6: Final answer
    x = 10,986.32

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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.