Home / 6,813.24-10,215.81-2,131.98

Finding the Fourth Proportional to 6,813.24, 10,215.81 and 2,131.98

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Solution

The fourth proportional to 6,813.24, 10,215.81 and 2,131.98 is: 3,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.24 : 10,215.81 = 2,131.98 : x
  2. Step 2: Convert to fraction form
    6,813.24/10,215.81 = 2,131.98/x
  3. Step 3: Cross multiply
    6,813.24x = 10,215.81 × 2,131.98
  4. Step 4: Simplify right side
    6,813.24x = 21,779,902.60
  5. Step 5: Solve for x
    x = 21,779,902.60/6,813.24
  6. Step 6: Final answer
    x = 3,196.70

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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.