Home / 18,879.18-28,316.94-5,731.66

Finding the Fourth Proportional to 18,879.18, 28,316.94 and 5,731.66

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Solution

The fourth proportional to 18,879.18, 28,316.94 and 5,731.66 is: 8,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.18 : 28,316.94 = 5,731.66 : x
  2. Step 2: Convert to fraction form
    18,879.18/28,316.94 = 5,731.66/x
  3. Step 3: Cross multiply
    18,879.18x = 28,316.94 × 5,731.66
  4. Step 4: Simplify right side
    18,879.18x = 162,303,118.46
  5. Step 5: Solve for x
    x = 162,303,118.46/18,879.18
  6. Step 6: Final answer
    x = 8,596.94

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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.