Home / 10,791.95-16,190.33-4,218.19

Finding the Fourth Proportional to 10,791.95, 16,190.33 and 4,218.19

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Solution

The fourth proportional to 10,791.95, 16,190.33 and 4,218.19 is: 6,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.95 : 16,190.33 = 4,218.19 : x
  2. Step 2: Convert to fraction form
    10,791.95/16,190.33 = 4,218.19/x
  3. Step 3: Cross multiply
    10,791.95x = 16,190.33 × 4,218.19
  4. Step 4: Simplify right side
    10,791.95x = 68,293,826.54
  5. Step 5: Solve for x
    x = 68,293,826.54/10,791.95
  6. Step 6: Final answer
    x = 6,328.22

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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.