Home / 18,944.76-28,408.50-12,270.36

Finding the Fourth Proportional to 18,944.76, 28,408.50 and 12,270.36

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Solution

The fourth proportional to 18,944.76, 28,408.50 and 12,270.36 is: 18,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.76 : 28,408.50 = 12,270.36 : x
  2. Step 2: Convert to fraction form
    18,944.76/28,408.50 = 12,270.36/x
  3. Step 3: Cross multiply
    18,944.76x = 28,408.50 × 12,270.36
  4. Step 4: Simplify right side
    18,944.76x = 348,582,522.06
  5. Step 5: Solve for x
    x = 348,582,522.06/18,944.76
  6. Step 6: Final answer
    x = 18,399.94

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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.