Home / 8,126.56-12,188.59-2,579.18

Finding the Fourth Proportional to 8,126.56, 12,188.59 and 2,579.18

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Solution

The fourth proportional to 8,126.56, 12,188.59 and 2,579.18 is: 3,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.56 : 12,188.59 = 2,579.18 : x
  2. Step 2: Convert to fraction form
    8,126.56/12,188.59 = 2,579.18/x
  3. Step 3: Cross multiply
    8,126.56x = 12,188.59 × 2,579.18
  4. Step 4: Simplify right side
    8,126.56x = 31,436,561.11
  5. Step 5: Solve for x
    x = 31,436,561.11/8,126.56
  6. Step 6: Final answer
    x = 3,868.37

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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.