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Finding the Fourth Proportional to 14,045.52, 19,382.68 and 7,757.76

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Solution

The fourth proportional to 14,045.52, 19,382.68 and 7,757.76 is: 10,705.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.52 : 19,382.68 = 7,757.76 : x
  2. Step 2: Convert to fraction form
    14,045.52/19,382.68 = 7,757.76/x
  3. Step 3: Cross multiply
    14,045.52x = 19,382.68 × 7,757.76
  4. Step 4: Simplify right side
    14,045.52x = 150,366,179.60
  5. Step 5: Solve for x
    x = 150,366,179.60/14,045.52
  6. Step 6: Final answer
    x = 10,705.63

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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.