Home / 13,623.54-18,800.55-7,958.61

Finding the Fourth Proportional to 13,623.54, 18,800.55 and 7,958.61

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Solution

The fourth proportional to 13,623.54, 18,800.55 and 7,958.61 is: 10,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.54 : 18,800.55 = 7,958.61 : x
  2. Step 2: Convert to fraction form
    13,623.54/18,800.55 = 7,958.61/x
  3. Step 3: Cross multiply
    13,623.54x = 18,800.55 × 7,958.61
  4. Step 4: Simplify right side
    13,623.54x = 149,626,245.24
  5. Step 5: Solve for x
    x = 149,626,245.24/13,623.54
  6. Step 6: Final answer
    x = 10,982.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.