Home / 12,198.16-18,284.28-5,176.72

Finding the Fourth Proportional to 12,198.16, 18,284.28 and 5,176.72

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Solution

The fourth proportional to 12,198.16, 18,284.28 and 5,176.72 is: 7,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.16 : 18,284.28 = 5,176.72 : x
  2. Step 2: Convert to fraction form
    12,198.16/18,284.28 = 5,176.72/x
  3. Step 3: Cross multiply
    12,198.16x = 18,284.28 × 5,176.72
  4. Step 4: Simplify right side
    12,198.16x = 94,652,597.96
  5. Step 5: Solve for x
    x = 94,652,597.96/12,198.16
  6. Step 6: Final answer
    x = 7,759.58

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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.