Home / 18,768.13-28,107.34-10,427.46

Finding the Fourth Proportional to 18,768.13, 28,107.34 and 10,427.46

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Solution

The fourth proportional to 18,768.13, 28,107.34 and 10,427.46 is: 15,616.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.13 : 28,107.34 = 10,427.46 : x
  2. Step 2: Convert to fraction form
    18,768.13/28,107.34 = 10,427.46/x
  3. Step 3: Cross multiply
    18,768.13x = 28,107.34 × 10,427.46
  4. Step 4: Simplify right side
    18,768.13x = 293,088,163.56
  5. Step 5: Solve for x
    x = 293,088,163.56/18,768.13
  6. Step 6: Final answer
    x = 15,616.27

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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.