Home / 6,813.38-10,215.20-2,915.66

Finding the Fourth Proportional to 6,813.38, 10,215.20 and 2,915.66

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Solution

The fourth proportional to 6,813.38, 10,215.20 and 2,915.66 is: 4,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.38 : 10,215.20 = 2,915.66 : x
  2. Step 2: Convert to fraction form
    6,813.38/10,215.20 = 2,915.66/x
  3. Step 3: Cross multiply
    6,813.38x = 10,215.20 × 2,915.66
  4. Step 4: Simplify right side
    6,813.38x = 29,784,050.03
  5. Step 5: Solve for x
    x = 29,784,050.03/6,813.38
  6. Step 6: Final answer
    x = 4,371.41

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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.