Home / 18,776.93-28,169.03-5,628.20

Finding the Fourth Proportional to 18,776.93, 28,169.03 and 5,628.20

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Solution

The fourth proportional to 18,776.93, 28,169.03 and 5,628.20 is: 8,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.93 : 28,169.03 = 5,628.20 : x
  2. Step 2: Convert to fraction form
    18,776.93/28,169.03 = 5,628.20/x
  3. Step 3: Cross multiply
    18,776.93x = 28,169.03 × 5,628.20
  4. Step 4: Simplify right side
    18,776.93x = 158,540,807.87
  5. Step 5: Solve for x
    x = 158,540,807.87/18,776.93
  6. Step 6: Final answer
    x = 8,443.39

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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.