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Finding the Fourth Proportional to 14,179.13, 19,568.06 and 7,891.50

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Solution

The fourth proportional to 14,179.13, 19,568.06 and 7,891.50 is: 10,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.13 : 19,568.06 = 7,891.50 : x
  2. Step 2: Convert to fraction form
    14,179.13/19,568.06 = 7,891.50/x
  3. Step 3: Cross multiply
    14,179.13x = 19,568.06 × 7,891.50
  4. Step 4: Simplify right side
    14,179.13x = 154,421,345.49
  5. Step 5: Solve for x
    x = 154,421,345.49/14,179.13
  6. Step 6: Final answer
    x = 10,890.75

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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.