Home / 8,743.72-12,071.92-6,723.22

Finding the Fourth Proportional to 8,743.72, 12,071.92 and 6,723.22

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Solution

The fourth proportional to 8,743.72, 12,071.92 and 6,723.22 is: 9,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.72 : 12,071.92 = 6,723.22 : x
  2. Step 2: Convert to fraction form
    8,743.72/12,071.92 = 6,723.22/x
  3. Step 3: Cross multiply
    8,743.72x = 12,071.92 × 6,723.22
  4. Step 4: Simplify right side
    8,743.72x = 81,162,173.98
  5. Step 5: Solve for x
    x = 81,162,173.98/8,743.72
  6. Step 6: Final answer
    x = 9,282.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.