Home / 13,725.14-20,578.40-4,362.35

Finding the Fourth Proportional to 13,725.14, 20,578.40 and 4,362.35

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Solution

The fourth proportional to 13,725.14, 20,578.40 and 4,362.35 is: 6,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.14 : 20,578.40 = 4,362.35 : x
  2. Step 2: Convert to fraction form
    13,725.14/20,578.40 = 4,362.35/x
  3. Step 3: Cross multiply
    13,725.14x = 20,578.40 × 4,362.35
  4. Step 4: Simplify right side
    13,725.14x = 89,770,223.78
  5. Step 5: Solve for x
    x = 89,770,223.78/13,725.14
  6. Step 6: Final answer
    x = 6,540.57

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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.