Home / 8,519.64-12,780.42-3,588.36

Finding the Fourth Proportional to 8,519.64, 12,780.42 and 3,588.36

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Solution

The fourth proportional to 8,519.64, 12,780.42 and 3,588.36 is: 5,382.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.64 : 12,780.42 = 3,588.36 : x
  2. Step 2: Convert to fraction form
    8,519.64/12,780.42 = 3,588.36/x
  3. Step 3: Cross multiply
    8,519.64x = 12,780.42 × 3,588.36
  4. Step 4: Simplify right side
    8,519.64x = 45,860,747.91
  5. Step 5: Solve for x
    x = 45,860,747.91/8,519.64
  6. Step 6: Final answer
    x = 5,382.94

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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.