Home / 10,891.76-16,328.84-4,224.82

Finding the Fourth Proportional to 10,891.76, 16,328.84 and 4,224.82

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Solution

The fourth proportional to 10,891.76, 16,328.84 and 4,224.82 is: 6,333.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.76 : 16,328.84 = 4,224.82 : x
  2. Step 2: Convert to fraction form
    10,891.76/16,328.84 = 4,224.82/x
  3. Step 3: Cross multiply
    10,891.76x = 16,328.84 × 4,224.82
  4. Step 4: Simplify right side
    10,891.76x = 68,986,328.16
  5. Step 5: Solve for x
    x = 68,986,328.16/10,891.76
  6. Step 6: Final answer
    x = 6,333.81

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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.