Home / 8,622.46-12,933.96-2,779.66

Finding the Fourth Proportional to 8,622.46, 12,933.96 and 2,779.66

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Solution

The fourth proportional to 8,622.46, 12,933.96 and 2,779.66 is: 4,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.46 : 12,933.96 = 2,779.66 : x
  2. Step 2: Convert to fraction form
    8,622.46/12,933.96 = 2,779.66/x
  3. Step 3: Cross multiply
    8,622.46x = 12,933.96 × 2,779.66
  4. Step 4: Simplify right side
    8,622.46x = 35,952,011.25
  5. Step 5: Solve for x
    x = 35,952,011.25/8,622.46
  6. Step 6: Final answer
    x = 4,169.58

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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.