Home / 8,240.12-12,360.09-2,000.21

Finding the Fourth Proportional to 8,240.12, 12,360.09 and 2,000.21

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Solution

The fourth proportional to 8,240.12, 12,360.09 and 2,000.21 is: 3,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.12 : 12,360.09 = 2,000.21 : x
  2. Step 2: Convert to fraction form
    8,240.12/12,360.09 = 2,000.21/x
  3. Step 3: Cross multiply
    8,240.12x = 12,360.09 × 2,000.21
  4. Step 4: Simplify right side
    8,240.12x = 24,722,713.82
  5. Step 5: Solve for x
    x = 24,722,713.82/8,240.12
  6. Step 6: Final answer
    x = 3,000.28

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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.