Home / 13,236.60-19,857.78-3,876.84

Finding the Fourth Proportional to 13,236.60, 19,857.78 and 3,876.84

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Solution

The fourth proportional to 13,236.60, 19,857.78 and 3,876.84 is: 5,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.60 : 19,857.78 = 3,876.84 : x
  2. Step 2: Convert to fraction form
    13,236.60/19,857.78 = 3,876.84/x
  3. Step 3: Cross multiply
    13,236.60x = 19,857.78 × 3,876.84
  4. Step 4: Simplify right side
    13,236.60x = 76,985,435.82
  5. Step 5: Solve for x
    x = 76,985,435.82/13,236.60
  6. Step 6: Final answer
    x = 5,816.10

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1.5x scale

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.