Home / 13,935.40-20,902.29-10,190.97

Finding the Fourth Proportional to 13,935.40, 20,902.29 and 10,190.97

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Solution

The fourth proportional to 13,935.40, 20,902.29 and 10,190.97 is: 15,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.40 : 20,902.29 = 10,190.97 : x
  2. Step 2: Convert to fraction form
    13,935.40/20,902.29 = 10,190.97/x
  3. Step 3: Cross multiply
    13,935.40x = 20,902.29 × 10,190.97
  4. Step 4: Simplify right side
    13,935.40x = 213,014,572.11
  5. Step 5: Solve for x
    x = 213,014,572.11/13,935.40
  6. Step 6: Final answer
    x = 15,285.86

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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.