Home / 13,863.09-20,795.77-5,538.56

Finding the Fourth Proportional to 13,863.09, 20,795.77 and 5,538.56

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Solution

The fourth proportional to 13,863.09, 20,795.77 and 5,538.56 is: 8,308.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.09 : 20,795.77 = 5,538.56 : x
  2. Step 2: Convert to fraction form
    13,863.09/20,795.77 = 5,538.56/x
  3. Step 3: Cross multiply
    13,863.09x = 20,795.77 × 5,538.56
  4. Step 4: Simplify right side
    13,863.09x = 115,178,502.07
  5. Step 5: Solve for x
    x = 115,178,502.07/13,863.09
  6. Step 6: Final answer
    x = 8,308.28

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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.