Home / 18,021.35-26,984.70-12,727.73

Finding the Fourth Proportional to 18,021.35, 26,984.70 and 12,727.73

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Solution

The fourth proportional to 18,021.35, 26,984.70 and 12,727.73 is: 19,058.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.35 : 26,984.70 = 12,727.73 : x
  2. Step 2: Convert to fraction form
    18,021.35/26,984.70 = 12,727.73/x
  3. Step 3: Cross multiply
    18,021.35x = 26,984.70 × 12,727.73
  4. Step 4: Simplify right side
    18,021.35x = 343,453,840.81
  5. Step 5: Solve for x
    x = 343,453,840.81/18,021.35
  6. Step 6: Final answer
    x = 19,058.17

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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.