Home / 13,905.89-19,151.61-12,016.85

Finding the Fourth Proportional to 13,905.89, 19,151.61 and 12,016.85

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Solution

The fourth proportional to 13,905.89, 19,151.61 and 12,016.85 is: 16,549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.89 : 19,151.61 = 12,016.85 : x
  2. Step 2: Convert to fraction form
    13,905.89/19,151.61 = 12,016.85/x
  3. Step 3: Cross multiply
    13,905.89x = 19,151.61 × 12,016.85
  4. Step 4: Simplify right side
    13,905.89x = 230,141,928.87
  5. Step 5: Solve for x
    x = 230,141,928.87/13,905.89
  6. Step 6: Final answer
    x = 16,549.97

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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.