Home / 8,423.04-12,634.64-5,519.80

Finding the Fourth Proportional to 8,423.04, 12,634.64 and 5,519.80

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Solution

The fourth proportional to 8,423.04, 12,634.64 and 5,519.80 is: 8,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.04 : 12,634.64 = 5,519.80 : x
  2. Step 2: Convert to fraction form
    8,423.04/12,634.64 = 5,519.80/x
  3. Step 3: Cross multiply
    8,423.04x = 12,634.64 × 5,519.80
  4. Step 4: Simplify right side
    8,423.04x = 69,740,685.87
  5. Step 5: Solve for x
    x = 69,740,685.87/8,423.04
  6. Step 6: Final answer
    x = 8,279.75

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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.