Home / 19,974.82-29,973.67-8,126.40

Finding the Fourth Proportional to 19,974.82, 29,973.67 and 8,126.40

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Solution

The fourth proportional to 19,974.82, 29,973.67 and 8,126.40 is: 12,194.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.82 : 29,973.67 = 8,126.40 : x
  2. Step 2: Convert to fraction form
    19,974.82/29,973.67 = 8,126.40/x
  3. Step 3: Cross multiply
    19,974.82x = 29,973.67 × 8,126.40
  4. Step 4: Simplify right side
    19,974.82x = 243,577,991.26
  5. Step 5: Solve for x
    x = 243,577,991.26/19,974.82
  6. Step 6: Final answer
    x = 12,194.26

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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.