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Finding the Fourth Proportional to 8,705.96, 13,056.17 and 2,861.22

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Solution

The fourth proportional to 8,705.96, 13,056.17 and 2,861.22 is: 4,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.96 : 13,056.17 = 2,861.22 : x
  2. Step 2: Convert to fraction form
    8,705.96/13,056.17 = 2,861.22/x
  3. Step 3: Cross multiply
    8,705.96x = 13,056.17 × 2,861.22
  4. Step 4: Simplify right side
    8,705.96x = 37,356,574.73
  5. Step 5: Solve for x
    x = 37,356,574.73/8,705.96
  6. Step 6: Final answer
    x = 4,290.92

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1.5x scale

Why These Related Problems?

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