Home / 8,580.22-12,869.10-3,317.70

Finding the Fourth Proportional to 8,580.22, 12,869.10 and 3,317.70

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Solution

The fourth proportional to 8,580.22, 12,869.10 and 3,317.70 is: 4,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.22 : 12,869.10 = 3,317.70 : x
  2. Step 2: Convert to fraction form
    8,580.22/12,869.10 = 3,317.70/x
  3. Step 3: Cross multiply
    8,580.22x = 12,869.10 × 3,317.70
  4. Step 4: Simplify right side
    8,580.22x = 42,695,813.07
  5. Step 5: Solve for x
    x = 42,695,813.07/8,580.22
  6. Step 6: Final answer
    x = 4,976.07

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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.