Home / 13,863.60-20,795.64-4,979.52

Finding the Fourth Proportional to 13,863.60, 20,795.64 and 4,979.52

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Solution

The fourth proportional to 13,863.60, 20,795.64 and 4,979.52 is: 7,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.60 : 20,795.64 = 4,979.52 : x
  2. Step 2: Convert to fraction form
    13,863.60/20,795.64 = 4,979.52/x
  3. Step 3: Cross multiply
    13,863.60x = 20,795.64 × 4,979.52
  4. Step 4: Simplify right side
    13,863.60x = 103,552,305.29
  5. Step 5: Solve for x
    x = 103,552,305.29/13,863.60
  6. Step 6: Final answer
    x = 7,469.37

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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.