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Finding the Fourth Proportional to 8,899.60, 13,349.24 and 2,659.64

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Solution

The fourth proportional to 8,899.60, 13,349.24 and 2,659.64 is: 3,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.60 : 13,349.24 = 2,659.64 : x
  2. Step 2: Convert to fraction form
    8,899.60/13,349.24 = 2,659.64/x
  3. Step 3: Cross multiply
    8,899.60x = 13,349.24 × 2,659.64
  4. Step 4: Simplify right side
    8,899.60x = 35,504,172.67
  5. Step 5: Solve for x
    x = 35,504,172.67/8,899.60
  6. Step 6: Final answer
    x = 3,989.41

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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.