Home / 11,231.28-16,849.26-4,210.20

Finding the Fourth Proportional to 11,231.28, 16,849.26 and 4,210.20

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Solution

The fourth proportional to 11,231.28, 16,849.26 and 4,210.20 is: 6,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.28 : 16,849.26 = 4,210.20 : x
  2. Step 2: Convert to fraction form
    11,231.28/16,849.26 = 4,210.20/x
  3. Step 3: Cross multiply
    11,231.28x = 16,849.26 × 4,210.20
  4. Step 4: Simplify right side
    11,231.28x = 70,938,754.45
  5. Step 5: Solve for x
    x = 70,938,754.45/11,231.28
  6. Step 6: Final answer
    x = 6,316.18

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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.