Home / 13,418.68-20,127.48-6,844.72

Finding the Fourth Proportional to 13,418.68, 20,127.48 and 6,844.72

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Solution

The fourth proportional to 13,418.68, 20,127.48 and 6,844.72 is: 10,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.68 : 20,127.48 = 6,844.72 : x
  2. Step 2: Convert to fraction form
    13,418.68/20,127.48 = 6,844.72/x
  3. Step 3: Cross multiply
    13,418.68x = 20,127.48 × 6,844.72
  4. Step 4: Simplify right side
    13,418.68x = 137,766,964.91
  5. Step 5: Solve for x
    x = 137,766,964.91/13,418.68
  6. Step 6: Final answer
    x = 10,266.80

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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.