Home / 13,426.12-20,121.66-6,846.76

Finding the Fourth Proportional to 13,426.12, 20,121.66 and 6,846.76

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Solution

The fourth proportional to 13,426.12, 20,121.66 and 6,846.76 is: 10,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.12 : 20,121.66 = 6,846.76 : x
  2. Step 2: Convert to fraction form
    13,426.12/20,121.66 = 6,846.76/x
  3. Step 3: Cross multiply
    13,426.12x = 20,121.66 × 6,846.76
  4. Step 4: Simplify right side
    13,426.12x = 137,768,176.82
  5. Step 5: Solve for x
    x = 137,768,176.82/13,426.12
  6. Step 6: Final answer
    x = 10,261.21

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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.