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Finding the Fourth Proportional to 8,990.96, 13,487.88 and 3,796.88

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Solution

The fourth proportional to 8,990.96, 13,487.88 and 3,796.88 is: 5,695.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.96 : 13,487.88 = 3,796.88 : x
  2. Step 2: Convert to fraction form
    8,990.96/13,487.88 = 3,796.88/x
  3. Step 3: Cross multiply
    8,990.96x = 13,487.88 × 3,796.88
  4. Step 4: Simplify right side
    8,990.96x = 51,211,861.81
  5. Step 5: Solve for x
    x = 51,211,861.81/8,990.96
  6. Step 6: Final answer
    x = 5,695.93

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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.