Home / 12,406.38-18,609.66-3,641.42

Finding the Fourth Proportional to 12,406.38, 18,609.66 and 3,641.42

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Solution

The fourth proportional to 12,406.38, 18,609.66 and 3,641.42 is: 5,462.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.38 : 18,609.66 = 3,641.42 : x
  2. Step 2: Convert to fraction form
    12,406.38/18,609.66 = 3,641.42/x
  3. Step 3: Cross multiply
    12,406.38x = 18,609.66 × 3,641.42
  4. Step 4: Simplify right side
    12,406.38x = 67,765,588.12
  5. Step 5: Solve for x
    x = 67,765,588.12/12,406.38
  6. Step 6: Final answer
    x = 5,462.16

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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.