Home / 13,195.40-19,790.66-3,578.45

Finding the Fourth Proportional to 13,195.40, 19,790.66 and 3,578.45

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Solution

The fourth proportional to 13,195.40, 19,790.66 and 3,578.45 is: 5,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.40 : 19,790.66 = 3,578.45 : x
  2. Step 2: Convert to fraction form
    13,195.40/19,790.66 = 3,578.45/x
  3. Step 3: Cross multiply
    13,195.40x = 19,790.66 × 3,578.45
  4. Step 4: Simplify right side
    13,195.40x = 70,819,770.43
  5. Step 5: Solve for x
    x = 70,819,770.43/13,195.40
  6. Step 6: Final answer
    x = 5,367.01

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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.