Home / 13,635.43-20,444.77-5,305.75

Finding the Fourth Proportional to 13,635.43, 20,444.77 and 5,305.75

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Solution

The fourth proportional to 13,635.43, 20,444.77 and 5,305.75 is: 7,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.43 : 20,444.77 = 5,305.75 : x
  2. Step 2: Convert to fraction form
    13,635.43/20,444.77 = 5,305.75/x
  3. Step 3: Cross multiply
    13,635.43x = 20,444.77 × 5,305.75
  4. Step 4: Simplify right side
    13,635.43x = 108,474,838.43
  5. Step 5: Solve for x
    x = 108,474,838.43/13,635.43
  6. Step 6: Final answer
    x = 7,955.37

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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.