Home / 13,935.06-20,901.78-10,190.66

Finding the Fourth Proportional to 13,935.06, 20,901.78 and 10,190.66

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Solution

The fourth proportional to 13,935.06, 20,901.78 and 10,190.66 is: 15,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.06 : 20,901.78 = 10,190.66 : x
  2. Step 2: Convert to fraction form
    13,935.06/20,901.78 = 10,190.66/x
  3. Step 3: Cross multiply
    13,935.06x = 20,901.78 × 10,190.66
  4. Step 4: Simplify right side
    13,935.06x = 213,002,933.37
  5. Step 5: Solve for x
    x = 213,002,933.37/13,935.06
  6. Step 6: Final answer
    x = 15,285.40

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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.