Home / 8,336.20-12,488.10-5,711.80

Finding the Fourth Proportional to 8,336.20, 12,488.10 and 5,711.80

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Solution

The fourth proportional to 8,336.20, 12,488.10 and 5,711.80 is: 8,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.20 : 12,488.10 = 5,711.80 : x
  2. Step 2: Convert to fraction form
    8,336.20/12,488.10 = 5,711.80/x
  3. Step 3: Cross multiply
    8,336.20x = 12,488.10 × 5,711.80
  4. Step 4: Simplify right side
    8,336.20x = 71,329,529.58
  5. Step 5: Solve for x
    x = 71,329,529.58/8,336.20
  6. Step 6: Final answer
    x = 8,556.60

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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.