Home / 10,813.27-16,218.50-3,418.47

Finding the Fourth Proportional to 10,813.27, 16,218.50 and 3,418.47

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Solution

The fourth proportional to 10,813.27, 16,218.50 and 3,418.47 is: 5,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.27 : 16,218.50 = 3,418.47 : x
  2. Step 2: Convert to fraction form
    10,813.27/16,218.50 = 3,418.47/x
  3. Step 3: Cross multiply
    10,813.27x = 16,218.50 × 3,418.47
  4. Step 4: Simplify right side
    10,813.27x = 55,442,438.60
  5. Step 5: Solve for x
    x = 55,442,438.60/10,813.27
  6. Step 6: Final answer
    x = 5,127.26

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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.