Home / 8,290.49-12,427.91-4,126.56

Finding the Fourth Proportional to 8,290.49, 12,427.91 and 4,126.56

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Solution

The fourth proportional to 8,290.49, 12,427.91 and 4,126.56 is: 6,185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.49 : 12,427.91 = 4,126.56 : x
  2. Step 2: Convert to fraction form
    8,290.49/12,427.91 = 4,126.56/x
  3. Step 3: Cross multiply
    8,290.49x = 12,427.91 × 4,126.56
  4. Step 4: Simplify right side
    8,290.49x = 51,284,513.97
  5. Step 5: Solve for x
    x = 51,284,513.97/8,290.49
  6. Step 6: Final answer
    x = 6,185.95

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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.