Home / 8,542.45-12,809.83-3,609.55

Finding the Fourth Proportional to 8,542.45, 12,809.83 and 3,609.55

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Solution

The fourth proportional to 8,542.45, 12,809.83 and 3,609.55 is: 5,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.45 : 12,809.83 = 3,609.55 : x
  2. Step 2: Convert to fraction form
    8,542.45/12,809.83 = 3,609.55/x
  3. Step 3: Cross multiply
    8,542.45x = 12,809.83 × 3,609.55
  4. Step 4: Simplify right side
    8,542.45x = 46,237,721.88
  5. Step 5: Solve for x
    x = 46,237,721.88/8,542.45
  6. Step 6: Final answer
    x = 5,412.70

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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.