Home / 13,815.43-20,725.19-4,930.07

Finding the Fourth Proportional to 13,815.43, 20,725.19 and 4,930.07

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Solution

The fourth proportional to 13,815.43, 20,725.19 and 4,930.07 is: 7,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.43 : 20,725.19 = 4,930.07 : x
  2. Step 2: Convert to fraction form
    13,815.43/20,725.19 = 4,930.07/x
  3. Step 3: Cross multiply
    13,815.43x = 20,725.19 × 4,930.07
  4. Step 4: Simplify right side
    13,815.43x = 102,176,546.16
  5. Step 5: Solve for x
    x = 102,176,546.16/13,815.43
  6. Step 6: Final answer
    x = 7,395.83

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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.