Home / 8,391.24-12,585.06-3,459.60

Finding the Fourth Proportional to 8,391.24, 12,585.06 and 3,459.60

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Solution

The fourth proportional to 8,391.24, 12,585.06 and 3,459.60 is: 5,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.24 : 12,585.06 = 3,459.60 : x
  2. Step 2: Convert to fraction form
    8,391.24/12,585.06 = 3,459.60/x
  3. Step 3: Cross multiply
    8,391.24x = 12,585.06 × 3,459.60
  4. Step 4: Simplify right side
    8,391.24x = 43,539,273.58
  5. Step 5: Solve for x
    x = 43,539,273.58/8,391.24
  6. Step 6: Final answer
    x = 5,188.66

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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.