Home / 13,912.08-20,853.54-5,141.40

Finding the Fourth Proportional to 13,912.08, 20,853.54 and 5,141.40

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Solution

The fourth proportional to 13,912.08, 20,853.54 and 5,141.40 is: 7,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.08 : 20,853.54 = 5,141.40 : x
  2. Step 2: Convert to fraction form
    13,912.08/20,853.54 = 5,141.40/x
  3. Step 3: Cross multiply
    13,912.08x = 20,853.54 × 5,141.40
  4. Step 4: Simplify right side
    13,912.08x = 107,216,390.56
  5. Step 5: Solve for x
    x = 107,216,390.56/13,912.08
  6. Step 6: Final answer
    x = 7,706.71

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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.