Home / 8,688.88-13,035.30-2,845.36

Finding the Fourth Proportional to 8,688.88, 13,035.30 and 2,845.36

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Solution

The fourth proportional to 8,688.88, 13,035.30 and 2,845.36 is: 4,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.88 : 13,035.30 = 2,845.36 : x
  2. Step 2: Convert to fraction form
    8,688.88/13,035.30 = 2,845.36/x
  3. Step 3: Cross multiply
    8,688.88x = 13,035.30 × 2,845.36
  4. Step 4: Simplify right side
    8,688.88x = 37,090,121.21
  5. Step 5: Solve for x
    x = 37,090,121.21/8,688.88
  6. Step 6: Final answer
    x = 4,268.69

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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.