Home / 8,669.60-13,003.14-3,122.09

Finding the Fourth Proportional to 8,669.60, 13,003.14 and 3,122.09

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Solution

The fourth proportional to 8,669.60, 13,003.14 and 3,122.09 is: 4,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.60 : 13,003.14 = 3,122.09 : x
  2. Step 2: Convert to fraction form
    8,669.60/13,003.14 = 3,122.09/x
  3. Step 3: Cross multiply
    8,669.60x = 13,003.14 × 3,122.09
  4. Step 4: Simplify right side
    8,669.60x = 40,596,973.36
  5. Step 5: Solve for x
    x = 40,596,973.36/8,669.60
  6. Step 6: Final answer
    x = 4,682.68

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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.