Home / 8,780.06-13,172.22-3,585.94

Finding the Fourth Proportional to 8,780.06, 13,172.22 and 3,585.94

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Solution

The fourth proportional to 8,780.06, 13,172.22 and 3,585.94 is: 5,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.06 : 13,172.22 = 3,585.94 : x
  2. Step 2: Convert to fraction form
    8,780.06/13,172.22 = 3,585.94/x
  3. Step 3: Cross multiply
    8,780.06x = 13,172.22 × 3,585.94
  4. Step 4: Simplify right side
    8,780.06x = 47,234,757.66
  5. Step 5: Solve for x
    x = 47,234,757.66/8,780.06
  6. Step 6: Final answer
    x = 5,379.77

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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.