Home / 8,257.80-11,396.20-4,721.72

Finding the Fourth Proportional to 8,257.80, 11,396.20 and 4,721.72

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Solution

The fourth proportional to 8,257.80, 11,396.20 and 4,721.72 is: 6,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.80 : 11,396.20 = 4,721.72 : x
  2. Step 2: Convert to fraction form
    8,257.80/11,396.20 = 4,721.72/x
  3. Step 3: Cross multiply
    8,257.80x = 11,396.20 × 4,721.72
  4. Step 4: Simplify right side
    8,257.80x = 53,809,665.46
  5. Step 5: Solve for x
    x = 53,809,665.46/8,257.80
  6. Step 6: Final answer
    x = 6,516.22

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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.