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Finding the Fourth Proportional to 14,568.75, 20,104.81 and 8,281.13

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Solution

The fourth proportional to 14,568.75, 20,104.81 and 8,281.13 is: 11,427.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,568.75 : 20,104.81 = 8,281.13 : x
  2. Step 2: Convert to fraction form
    14,568.75/20,104.81 = 8,281.13/x
  3. Step 3: Cross multiply
    14,568.75x = 20,104.81 × 8,281.13
  4. Step 4: Simplify right side
    14,568.75x = 166,490,545.24
  5. Step 5: Solve for x
    x = 166,490,545.24/14,568.75
  6. Step 6: Final answer
    x = 11,427.92

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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.