Home / 13,918.86-19,196.87-12,236.70

Finding the Fourth Proportional to 13,918.86, 19,196.87 and 12,236.70

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Solution

The fourth proportional to 13,918.86, 19,196.87 and 12,236.70 is: 16,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.86 : 19,196.87 = 12,236.70 : x
  2. Step 2: Convert to fraction form
    13,918.86/19,196.87 = 12,236.70/x
  3. Step 3: Cross multiply
    13,918.86x = 19,196.87 × 12,236.70
  4. Step 4: Simplify right side
    13,918.86x = 234,906,339.13
  5. Step 5: Solve for x
    x = 234,906,339.13/13,918.86
  6. Step 6: Final answer
    x = 16,876.84

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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.