Home / 13,909.37-19,183.76-12,227.20

Finding the Fourth Proportional to 13,909.37, 19,183.76 and 12,227.20

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Solution

The fourth proportional to 13,909.37, 19,183.76 and 12,227.20 is: 16,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.37 : 19,183.76 = 12,227.20 : x
  2. Step 2: Convert to fraction form
    13,909.37/19,183.76 = 12,227.20/x
  3. Step 3: Cross multiply
    13,909.37x = 19,183.76 × 12,227.20
  4. Step 4: Simplify right side
    13,909.37x = 234,563,670.27
  5. Step 5: Solve for x
    x = 234,563,670.27/13,909.37
  6. Step 6: Final answer
    x = 16,863.72

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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.