Home / 18,776.43-28,161.06-5,628.80

Finding the Fourth Proportional to 18,776.43, 28,161.06 and 5,628.80

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Solution

The fourth proportional to 18,776.43, 28,161.06 and 5,628.80 is: 8,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.43 : 28,161.06 = 5,628.80 : x
  2. Step 2: Convert to fraction form
    18,776.43/28,161.06 = 5,628.80/x
  3. Step 3: Cross multiply
    18,776.43x = 28,161.06 × 5,628.80
  4. Step 4: Simplify right side
    18,776.43x = 158,512,833.72
  5. Step 5: Solve for x
    x = 158,512,833.72/18,776.43
  6. Step 6: Final answer
    x = 8,442.12

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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.