Home / 12,126.43-18,175.06-6,579.55

Finding the Fourth Proportional to 12,126.43, 18,175.06 and 6,579.55

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Solution

The fourth proportional to 12,126.43, 18,175.06 and 6,579.55 is: 9,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.43 : 18,175.06 = 6,579.55 : x
  2. Step 2: Convert to fraction form
    12,126.43/18,175.06 = 6,579.55/x
  3. Step 3: Cross multiply
    12,126.43x = 18,175.06 × 6,579.55
  4. Step 4: Simplify right side
    12,126.43x = 119,583,716.02
  5. Step 5: Solve for x
    x = 119,583,716.02/12,126.43
  6. Step 6: Final answer
    x = 9,861.41

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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.