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Finding the Fourth Proportional to 13,471.72, 20,211.42 and 4,708.84

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Solution

The fourth proportional to 13,471.72, 20,211.42 and 4,708.84 is: 7,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.72 : 20,211.42 = 4,708.84 : x
  2. Step 2: Convert to fraction form
    13,471.72/20,211.42 = 4,708.84/x
  3. Step 3: Cross multiply
    13,471.72x = 20,211.42 × 4,708.84
  4. Step 4: Simplify right side
    13,471.72x = 95,172,342.95
  5. Step 5: Solve for x
    x = 95,172,342.95/13,471.72
  6. Step 6: Final answer
    x = 7,064.60

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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.