Home / 8,530.30-12,786.54-3,595.78

Finding the Fourth Proportional to 8,530.30, 12,786.54 and 3,595.78

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Solution

The fourth proportional to 8,530.30, 12,786.54 and 3,595.78 is: 5,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.30 : 12,786.54 = 3,595.78 : x
  2. Step 2: Convert to fraction form
    8,530.30/12,786.54 = 3,595.78/x
  3. Step 3: Cross multiply
    8,530.30x = 12,786.54 × 3,595.78
  4. Step 4: Simplify right side
    8,530.30x = 45,977,584.80
  5. Step 5: Solve for x
    x = 45,977,584.80/8,530.30
  6. Step 6: Final answer
    x = 5,389.91

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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.