Home / 13,912.39-20,860.78-6,009.97

Finding the Fourth Proportional to 13,912.39, 20,860.78 and 6,009.97

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Solution

The fourth proportional to 13,912.39, 20,860.78 and 6,009.97 is: 9,011.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.39 : 20,860.78 = 6,009.97 : x
  2. Step 2: Convert to fraction form
    13,912.39/20,860.78 = 6,009.97/x
  3. Step 3: Cross multiply
    13,912.39x = 20,860.78 × 6,009.97
  4. Step 4: Simplify right side
    13,912.39x = 125,372,720.76
  5. Step 5: Solve for x
    x = 125,372,720.76/13,912.39
  6. Step 6: Final answer
    x = 9,011.59

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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.