Home / 13,408.26-20,112.93-6,384.66

Finding the Fourth Proportional to 13,408.26, 20,112.93 and 6,384.66

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Solution

The fourth proportional to 13,408.26, 20,112.93 and 6,384.66 is: 9,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.26 : 20,112.93 = 6,384.66 : x
  2. Step 2: Convert to fraction form
    13,408.26/20,112.93 = 6,384.66/x
  3. Step 3: Cross multiply
    13,408.26x = 20,112.93 × 6,384.66
  4. Step 4: Simplify right side
    13,408.26x = 128,414,219.65
  5. Step 5: Solve for x
    x = 128,414,219.65/13,408.26
  6. Step 6: Final answer
    x = 9,577.25

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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.