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Finding the Fourth Proportional to 8,739.64, 13,100.94 and 5,610.88

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Solution

The fourth proportional to 8,739.64, 13,100.94 and 5,610.88 is: 8,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.64 : 13,100.94 = 5,610.88 : x
  2. Step 2: Convert to fraction form
    8,739.64/13,100.94 = 5,610.88/x
  3. Step 3: Cross multiply
    8,739.64x = 13,100.94 × 5,610.88
  4. Step 4: Simplify right side
    8,739.64x = 73,507,802.23
  5. Step 5: Solve for x
    x = 73,507,802.23/8,739.64
  6. Step 6: Final answer
    x = 8,410.85

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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.