Home / 13,924.72-20,880.52-8,082.96

Finding the Fourth Proportional to 13,924.72, 20,880.52 and 8,082.96

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Solution

The fourth proportional to 13,924.72, 20,880.52 and 8,082.96 is: 12,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.72 : 20,880.52 = 8,082.96 : x
  2. Step 2: Convert to fraction form
    13,924.72/20,880.52 = 8,082.96/x
  3. Step 3: Cross multiply
    13,924.72x = 20,880.52 × 8,082.96
  4. Step 4: Simplify right side
    13,924.72x = 168,776,407.94
  5. Step 5: Solve for x
    x = 168,776,407.94/13,924.72
  6. Step 6: Final answer
    x = 12,120.63

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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.