Home / 8,342.63-12,517.59-3,147.29

Finding the Fourth Proportional to 8,342.63, 12,517.59 and 3,147.29

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Solution

The fourth proportional to 8,342.63, 12,517.59 and 3,147.29 is: 4,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.63 : 12,517.59 = 3,147.29 : x
  2. Step 2: Convert to fraction form
    8,342.63/12,517.59 = 3,147.29/x
  3. Step 3: Cross multiply
    8,342.63x = 12,517.59 × 3,147.29
  4. Step 4: Simplify right side
    8,342.63x = 39,396,423.24
  5. Step 5: Solve for x
    x = 39,396,423.24/8,342.63
  6. Step 6: Final answer
    x = 4,722.31

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1.5x scale

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.