Home / 13,427.93-20,142.29-6,408.68

Finding the Fourth Proportional to 13,427.93, 20,142.29 and 6,408.68

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Solution

The fourth proportional to 13,427.93, 20,142.29 and 6,408.68 is: 9,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.93 : 20,142.29 = 6,408.68 : x
  2. Step 2: Convert to fraction form
    13,427.93/20,142.29 = 6,408.68/x
  3. Step 3: Cross multiply
    13,427.93x = 20,142.29 × 6,408.68
  4. Step 4: Simplify right side
    13,427.93x = 129,085,408.68
  5. Step 5: Solve for x
    x = 129,085,408.68/13,427.93
  6. Step 6: Final answer
    x = 9,613.21

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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.