Home / 13,411.44-20,118.47-6,749.37

Finding the Fourth Proportional to 13,411.44, 20,118.47 and 6,749.37

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Solution

The fourth proportional to 13,411.44, 20,118.47 and 6,749.37 is: 10,124.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.44 : 20,118.47 = 6,749.37 : x
  2. Step 2: Convert to fraction form
    13,411.44/20,118.47 = 6,749.37/x
  3. Step 3: Cross multiply
    13,411.44x = 20,118.47 × 6,749.37
  4. Step 4: Simplify right side
    13,411.44x = 135,786,964.12
  5. Step 5: Solve for x
    x = 135,786,964.12/13,411.44
  6. Step 6: Final answer
    x = 10,124.71

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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.