Home / 13,940.39-20,914.69-7,371.19

Finding the Fourth Proportional to 13,940.39, 20,914.69 and 7,371.19

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Solution

The fourth proportional to 13,940.39, 20,914.69 and 7,371.19 is: 11,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.39 : 20,914.69 = 7,371.19 : x
  2. Step 2: Convert to fraction form
    13,940.39/20,914.69 = 7,371.19/x
  3. Step 3: Cross multiply
    13,940.39x = 20,914.69 × 7,371.19
  4. Step 4: Simplify right side
    13,940.39x = 154,166,153.78
  5. Step 5: Solve for x
    x = 154,166,153.78/13,940.39
  6. Step 6: Final answer
    x = 11,058.96

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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.