Home / 13,419.30-20,104.65-10,940.70

Finding the Fourth Proportional to 13,419.30, 20,104.65 and 10,940.70

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Solution

The fourth proportional to 13,419.30, 20,104.65 and 10,940.70 is: 16,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.30 : 20,104.65 = 10,940.70 : x
  2. Step 2: Convert to fraction form
    13,419.30/20,104.65 = 10,940.70/x
  3. Step 3: Cross multiply
    13,419.30x = 20,104.65 × 10,940.70
  4. Step 4: Simplify right side
    13,419.30x = 219,958,944.26
  5. Step 5: Solve for x
    x = 219,958,944.26/13,419.30
  6. Step 6: Final answer
    x = 16,391.24

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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.