Home / 18,823.85-25,994.48-12,121.15

Finding the Fourth Proportional to 18,823.85, 25,994.48 and 12,121.15

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Solution

The fourth proportional to 18,823.85, 25,994.48 and 12,121.15 is: 16,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.85 : 25,994.48 = 12,121.15 : x
  2. Step 2: Convert to fraction form
    18,823.85/25,994.48 = 12,121.15/x
  3. Step 3: Cross multiply
    18,823.85x = 25,994.48 × 12,121.15
  4. Step 4: Simplify right side
    18,823.85x = 315,082,956.57
  5. Step 5: Solve for x
    x = 315,082,956.57/18,823.85
  6. Step 6: Final answer
    x = 16,738.50

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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.