Home / 13,626.82-18,801.73-7,958.35

Finding the Fourth Proportional to 13,626.82, 18,801.73 and 7,958.35

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Solution

The fourth proportional to 13,626.82, 18,801.73 and 7,958.35 is: 10,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.82 : 18,801.73 = 7,958.35 : x
  2. Step 2: Convert to fraction form
    13,626.82/18,801.73 = 7,958.35/x
  3. Step 3: Cross multiply
    13,626.82x = 18,801.73 × 7,958.35
  4. Step 4: Simplify right side
    13,626.82x = 149,630,747.95
  5. Step 5: Solve for x
    x = 149,630,747.95/13,626.82
  6. Step 6: Final answer
    x = 10,980.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.