Home / 6,813.12-10,221.84-5,171.52

Finding the Fourth Proportional to 6,813.12, 10,221.84 and 5,171.52

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Solution

The fourth proportional to 6,813.12, 10,221.84 and 5,171.52 is: 7,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.12 : 10,221.84 = 5,171.52 : x
  2. Step 2: Convert to fraction form
    6,813.12/10,221.84 = 5,171.52/x
  3. Step 3: Cross multiply
    6,813.12x = 10,221.84 × 5,171.52
  4. Step 4: Simplify right side
    6,813.12x = 52,862,450.00
  5. Step 5: Solve for x
    x = 52,862,450.00/6,813.12
  6. Step 6: Final answer
    x = 7,758.92

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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.