Home / 18,773.08-28,155.54-5,621.92

Finding the Fourth Proportional to 18,773.08, 28,155.54 and 5,621.92

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Solution

The fourth proportional to 18,773.08, 28,155.54 and 5,621.92 is: 8,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.08 : 28,155.54 = 5,621.92 : x
  2. Step 2: Convert to fraction form
    18,773.08/28,155.54 = 5,621.92/x
  3. Step 3: Cross multiply
    18,773.08x = 28,155.54 × 5,621.92
  4. Step 4: Simplify right side
    18,773.08x = 158,288,193.44
  5. Step 5: Solve for x
    x = 158,288,193.44/18,773.08
  6. Step 6: Final answer
    x = 8,431.66

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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.