Home / 6,813.12-10,219.68-2,133.04

Finding the Fourth Proportional to 6,813.12, 10,219.68 and 2,133.04

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Solution

The fourth proportional to 6,813.12, 10,219.68 and 2,133.04 is: 3,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.12 : 10,219.68 = 2,133.04 : x
  2. Step 2: Convert to fraction form
    6,813.12/10,219.68 = 2,133.04/x
  3. Step 3: Cross multiply
    6,813.12x = 10,219.68 × 2,133.04
  4. Step 4: Simplify right side
    6,813.12x = 21,798,986.23
  5. Step 5: Solve for x
    x = 21,798,986.23/6,813.12
  6. Step 6: Final answer
    x = 3,199.56

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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.