Home / 13,622.82-20,415.33-6,209.16

Finding the Fourth Proportional to 13,622.82, 20,415.33 and 6,209.16

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Solution

The fourth proportional to 13,622.82, 20,415.33 and 6,209.16 is: 9,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.82 : 20,415.33 = 6,209.16 : x
  2. Step 2: Convert to fraction form
    13,622.82/20,415.33 = 6,209.16/x
  3. Step 3: Cross multiply
    13,622.82x = 20,415.33 × 6,209.16
  4. Step 4: Simplify right side
    13,622.82x = 126,762,050.42
  5. Step 5: Solve for x
    x = 126,762,050.42/13,622.82
  6. Step 6: Final answer
    x = 9,305.13

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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.