Home / 13,634.43-20,443.28-5,304.75

Finding the Fourth Proportional to 13,634.43, 20,443.28 and 5,304.75

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Solution

The fourth proportional to 13,634.43, 20,443.28 and 5,304.75 is: 7,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.43 : 20,443.28 = 5,304.75 : x
  2. Step 2: Convert to fraction form
    13,634.43/20,443.28 = 5,304.75/x
  3. Step 3: Cross multiply
    13,634.43x = 20,443.28 × 5,304.75
  4. Step 4: Simplify right side
    13,634.43x = 108,446,386.39
  5. Step 5: Solve for x
    x = 108,446,386.39/13,634.43
  6. Step 6: Final answer
    x = 7,953.87

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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.