Home / 12,181.29-16,809.84-6,876.60

Finding the Fourth Proportional to 12,181.29, 16,809.84 and 6,876.60

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Solution

The fourth proportional to 12,181.29, 16,809.84 and 6,876.60 is: 9,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.29 : 16,809.84 = 6,876.60 : x
  2. Step 2: Convert to fraction form
    12,181.29/16,809.84 = 6,876.60/x
  3. Step 3: Cross multiply
    12,181.29x = 16,809.84 × 6,876.60
  4. Step 4: Simplify right side
    12,181.29x = 115,594,545.74
  5. Step 5: Solve for x
    x = 115,594,545.74/12,181.29
  6. Step 6: Final answer
    x = 9,489.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.