Home / 18,776.34-28,163.43-5,628.96

Finding the Fourth Proportional to 18,776.34, 28,163.43 and 5,628.96

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Solution

The fourth proportional to 18,776.34, 28,163.43 and 5,628.96 is: 8,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.34 : 28,163.43 = 5,628.96 : x
  2. Step 2: Convert to fraction form
    18,776.34/28,163.43 = 5,628.96/x
  3. Step 3: Cross multiply
    18,776.34x = 28,163.43 × 5,628.96
  4. Step 4: Simplify right side
    18,776.34x = 158,530,820.93
  5. Step 5: Solve for x
    x = 158,530,820.93/18,776.34
  6. Step 6: Final answer
    x = 8,443.12

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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.