Home / 8,126.72-12,185.52-2,579.03

Finding the Fourth Proportional to 8,126.72, 12,185.52 and 2,579.03

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Solution

The fourth proportional to 8,126.72, 12,185.52 and 2,579.03 is: 3,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.72 : 12,185.52 = 2,579.03 : x
  2. Step 2: Convert to fraction form
    8,126.72/12,185.52 = 2,579.03/x
  3. Step 3: Cross multiply
    8,126.72x = 12,185.52 × 2,579.03
  4. Step 4: Simplify right side
    8,126.72x = 31,426,821.65
  5. Step 5: Solve for x
    x = 31,426,821.65/8,126.72
  6. Step 6: Final answer
    x = 3,867.10

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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.