Home / 12,180.25-16,807.31-6,874.75

Finding the Fourth Proportional to 12,180.25, 16,807.31 and 6,874.75

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Solution

The fourth proportional to 12,180.25, 16,807.31 and 6,874.75 is: 9,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.25 : 16,807.31 = 6,874.75 : x
  2. Step 2: Convert to fraction form
    12,180.25/16,807.31 = 6,874.75/x
  3. Step 3: Cross multiply
    12,180.25x = 16,807.31 × 6,874.75
  4. Step 4: Simplify right side
    12,180.25x = 115,545,970.39
  5. Step 5: Solve for x
    x = 115,545,970.39/12,180.25
  6. Step 6: Final answer
    x = 9,486.34

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Half scale
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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.