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Finding the Fourth Proportional to 10,950.92, 16,428.81 and 3,159.13

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Solution

The fourth proportional to 10,950.92, 16,428.81 and 3,159.13 is: 4,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.92 : 16,428.81 = 3,159.13 : x
  2. Step 2: Convert to fraction form
    10,950.92/16,428.81 = 3,159.13/x
  3. Step 3: Cross multiply
    10,950.92x = 16,428.81 × 3,159.13
  4. Step 4: Simplify right side
    10,950.92x = 51,900,746.54
  5. Step 5: Solve for x
    x = 51,900,746.54/10,950.92
  6. Step 6: Final answer
    x = 4,739.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.