Home / 13,850.75-20,869.62-11,439.59

Finding the Fourth Proportional to 13,850.75, 20,869.62 and 11,439.59

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Solution

The fourth proportional to 13,850.75, 20,869.62 and 11,439.59 is: 17,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.75 : 20,869.62 = 11,439.59 : x
  2. Step 2: Convert to fraction form
    13,850.75/20,869.62 = 11,439.59/x
  3. Step 3: Cross multiply
    13,850.75x = 20,869.62 × 11,439.59
  4. Step 4: Simplify right side
    13,850.75x = 238,739,813.36
  5. Step 5: Solve for x
    x = 238,739,813.36/13,850.75
  6. Step 6: Final answer
    x = 17,236.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.