Home / 13,427.33-20,142.39-6,406.16

Finding the Fourth Proportional to 13,427.33, 20,142.39 and 6,406.16

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Solution

The fourth proportional to 13,427.33, 20,142.39 and 6,406.16 is: 9,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.33 : 20,142.39 = 6,406.16 : x
  2. Step 2: Convert to fraction form
    13,427.33/20,142.39 = 6,406.16/x
  3. Step 3: Cross multiply
    13,427.33x = 20,142.39 × 6,406.16
  4. Step 4: Simplify right side
    13,427.33x = 129,035,373.12
  5. Step 5: Solve for x
    x = 129,035,373.12/13,427.33
  6. Step 6: Final answer
    x = 9,609.91

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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.