Home / 13,426.79-20,142.23-6,849.38

Finding the Fourth Proportional to 13,426.79, 20,142.23 and 6,849.38

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Solution

The fourth proportional to 13,426.79, 20,142.23 and 6,849.38 is: 10,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.79 : 20,142.23 = 6,849.38 : x
  2. Step 2: Convert to fraction form
    13,426.79/20,142.23 = 6,849.38/x
  3. Step 3: Cross multiply
    13,426.79x = 20,142.23 × 6,849.38
  4. Step 4: Simplify right side
    13,426.79x = 137,961,803.43
  5. Step 5: Solve for x
    x = 137,961,803.43/13,426.79
  6. Step 6: Final answer
    x = 10,275.12

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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.