Home / 13,426.72-20,135.92-4,066.36

Finding the Fourth Proportional to 13,426.72, 20,135.92 and 4,066.36

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Solution

The fourth proportional to 13,426.72, 20,135.92 and 4,066.36 is: 6,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.72 : 20,135.92 = 4,066.36 : x
  2. Step 2: Convert to fraction form
    13,426.72/20,135.92 = 4,066.36/x
  3. Step 3: Cross multiply
    13,426.72x = 20,135.92 × 4,066.36
  4. Step 4: Simplify right side
    13,426.72x = 81,879,899.65
  5. Step 5: Solve for x
    x = 81,879,899.65/13,426.72
  6. Step 6: Final answer
    x = 6,098.28

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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.