Home / 13,426.91-20,142.41-6,849.51

Finding the Fourth Proportional to 13,426.91, 20,142.41 and 6,849.51

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Solution

The fourth proportional to 13,426.91, 20,142.41 and 6,849.51 is: 10,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.91 : 20,142.41 = 6,849.51 : x
  2. Step 2: Convert to fraction form
    13,426.91/20,142.41 = 6,849.51/x
  3. Step 3: Cross multiply
    13,426.91x = 20,142.41 × 6,849.51
  4. Step 4: Simplify right side
    13,426.91x = 137,965,605.49
  5. Step 5: Solve for x
    x = 137,965,605.49/13,426.91
  6. Step 6: Final answer
    x = 10,275.31

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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.