Home / 8,209.08-12,312.30-2,943.12

Finding the Fourth Proportional to 8,209.08, 12,312.30 and 2,943.12

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Solution

The fourth proportional to 8,209.08, 12,312.30 and 2,943.12 is: 4,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.08 : 12,312.30 = 2,943.12 : x
  2. Step 2: Convert to fraction form
    8,209.08/12,312.30 = 2,943.12/x
  3. Step 3: Cross multiply
    8,209.08x = 12,312.30 × 2,943.12
  4. Step 4: Simplify right side
    8,209.08x = 36,236,576.38
  5. Step 5: Solve for x
    x = 36,236,576.38/8,209.08
  6. Step 6: Final answer
    x = 4,414.21

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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.