Home / 8,391.30-12,587.56-2,845.24

Finding the Fourth Proportional to 8,391.30, 12,587.56 and 2,845.24

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Solution

The fourth proportional to 8,391.30, 12,587.56 and 2,845.24 is: 4,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.30 : 12,587.56 = 2,845.24 : x
  2. Step 2: Convert to fraction form
    8,391.30/12,587.56 = 2,845.24/x
  3. Step 3: Cross multiply
    8,391.30x = 12,587.56 × 2,845.24
  4. Step 4: Simplify right side
    8,391.30x = 35,814,629.21
  5. Step 5: Solve for x
    x = 35,814,629.21/8,391.30
  6. Step 6: Final answer
    x = 4,268.07

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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.