Home / 13,623-20,419.92-5,723.55

Finding the Fourth Proportional to 13,623, 20,419.92 and 5,723.55

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Solution

The fourth proportional to 13,623, 20,419.92 and 5,723.55 is: 8,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623 : 20,419.92 = 5,723.55 : x
  2. Step 2: Convert to fraction form
    13,623/20,419.92 = 5,723.55/x
  3. Step 3: Cross multiply
    13,623x = 20,419.92 × 5,723.55
  4. Step 4: Simplify right side
    13,623x = 116,874,433.12
  5. Step 5: Solve for x
    x = 116,874,433.12/13,623
  6. Step 6: Final answer
    x = 8,579.20

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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.