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Finding the Fourth Proportional to 8,706.96, 13,060.44 and 7,405.70

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Solution

The fourth proportional to 8,706.96, 13,060.44 and 7,405.70 is: 11,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.96 : 13,060.44 = 7,405.70 : x
  2. Step 2: Convert to fraction form
    8,706.96/13,060.44 = 7,405.70/x
  3. Step 3: Cross multiply
    8,706.96x = 13,060.44 × 7,405.70
  4. Step 4: Simplify right side
    8,706.96x = 96,721,635.21
  5. Step 5: Solve for x
    x = 96,721,635.21/8,706.96
  6. Step 6: Final answer
    x = 11,108.54

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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.