Home / 13,608.07-20,418.38-6,214.79

Finding the Fourth Proportional to 13,608.07, 20,418.38 and 6,214.79

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Solution

The fourth proportional to 13,608.07, 20,418.38 and 6,214.79 is: 9,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.07 : 20,418.38 = 6,214.79 : x
  2. Step 2: Convert to fraction form
    13,608.07/20,418.38 = 6,214.79/x
  3. Step 3: Cross multiply
    13,608.07x = 20,418.38 × 6,214.79
  4. Step 4: Simplify right side
    13,608.07x = 126,895,912.77
  5. Step 5: Solve for x
    x = 126,895,912.77/13,608.07
  6. Step 6: Final answer
    x = 9,325.05

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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.