Home / 12,739.48-19,110.56-3,972.04

Finding the Fourth Proportional to 12,739.48, 19,110.56 and 3,972.04

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Solution

The fourth proportional to 12,739.48, 19,110.56 and 3,972.04 is: 5,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.48 : 19,110.56 = 3,972.04 : x
  2. Step 2: Convert to fraction form
    12,739.48/19,110.56 = 3,972.04/x
  3. Step 3: Cross multiply
    12,739.48x = 19,110.56 × 3,972.04
  4. Step 4: Simplify right side
    12,739.48x = 75,907,908.74
  5. Step 5: Solve for x
    x = 75,907,908.74/12,739.48
  6. Step 6: Final answer
    x = 5,958.48

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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.