Home / 10,813.04-16,221.14-3,418.05

Finding the Fourth Proportional to 10,813.04, 16,221.14 and 3,418.05

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Solution

The fourth proportional to 10,813.04, 16,221.14 and 3,418.05 is: 5,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.04 : 16,221.14 = 3,418.05 : x
  2. Step 2: Convert to fraction form
    10,813.04/16,221.14 = 3,418.05/x
  3. Step 3: Cross multiply
    10,813.04x = 16,221.14 × 3,418.05
  4. Step 4: Simplify right side
    10,813.04x = 55,444,650.49
  5. Step 5: Solve for x
    x = 55,444,650.49/10,813.04
  6. Step 6: Final answer
    x = 5,127.58

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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.