Home / 8,009.20-12,012.38-2,165.06

Finding the Fourth Proportional to 8,009.20, 12,012.38 and 2,165.06

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Solution

The fourth proportional to 8,009.20, 12,012.38 and 2,165.06 is: 3,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.20 : 12,012.38 = 2,165.06 : x
  2. Step 2: Convert to fraction form
    8,009.20/12,012.38 = 2,165.06/x
  3. Step 3: Cross multiply
    8,009.20x = 12,012.38 × 2,165.06
  4. Step 4: Simplify right side
    8,009.20x = 26,007,523.44
  5. Step 5: Solve for x
    x = 26,007,523.44/8,009.20
  6. Step 6: Final answer
    x = 3,247.21

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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.