Home / 15,163.45-20,908.83-10,384.18

Finding the Fourth Proportional to 15,163.45, 20,908.83 and 10,384.18

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Solution

The fourth proportional to 15,163.45, 20,908.83 and 10,384.18 is: 14,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.45 : 20,908.83 = 10,384.18 : x
  2. Step 2: Convert to fraction form
    15,163.45/20,908.83 = 10,384.18/x
  3. Step 3: Cross multiply
    15,163.45x = 20,908.83 × 10,384.18
  4. Step 4: Simplify right side
    15,163.45x = 217,121,054.31
  5. Step 5: Solve for x
    x = 217,121,054.31/15,163.45
  6. Step 6: Final answer
    x = 14,318.71

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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.