Home / 13,916.37-20,836.89-10,190.37

Finding the Fourth Proportional to 13,916.37, 20,836.89 and 10,190.37

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Solution

The fourth proportional to 13,916.37, 20,836.89 and 10,190.37 is: 15,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.37 : 20,836.89 = 10,190.37 : x
  2. Step 2: Convert to fraction form
    13,916.37/20,836.89 = 10,190.37/x
  3. Step 3: Cross multiply
    13,916.37x = 20,836.89 × 10,190.37
  4. Step 4: Simplify right side
    13,916.37x = 212,335,618.75
  5. Step 5: Solve for x
    x = 212,335,618.75/13,916.37
  6. Step 6: Final answer
    x = 15,257.97

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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.