Home / 8,391.49-12,585.44-3,459.85

Finding the Fourth Proportional to 8,391.49, 12,585.44 and 3,459.85

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Solution

The fourth proportional to 8,391.49, 12,585.44 and 3,459.85 is: 5,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.49 : 12,585.44 = 3,459.85 : x
  2. Step 2: Convert to fraction form
    8,391.49/12,585.44 = 3,459.85/x
  3. Step 3: Cross multiply
    8,391.49x = 12,585.44 × 3,459.85
  4. Step 4: Simplify right side
    8,391.49x = 43,543,717.28
  5. Step 5: Solve for x
    x = 43,543,717.28/8,391.49
  6. Step 6: Final answer
    x = 5,189.03

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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.