Home / 12,255.36-16,914.15-6,878.37

Finding the Fourth Proportional to 12,255.36, 16,914.15 and 6,878.37

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Solution

The fourth proportional to 12,255.36, 16,914.15 and 6,878.37 is: 9,493.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.36 : 16,914.15 = 6,878.37 : x
  2. Step 2: Convert to fraction form
    12,255.36/16,914.15 = 6,878.37/x
  3. Step 3: Cross multiply
    12,255.36x = 16,914.15 × 6,878.37
  4. Step 4: Simplify right side
    12,255.36x = 116,341,781.94
  5. Step 5: Solve for x
    x = 116,341,781.94/12,255.36
  6. Step 6: Final answer
    x = 9,493.13

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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.