Home / 11,491.08-17,220.42-5,235.72

Finding the Fourth Proportional to 11,491.08, 17,220.42 and 5,235.72

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Solution

The fourth proportional to 11,491.08, 17,220.42 and 5,235.72 is: 7,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.08 : 17,220.42 = 5,235.72 : x
  2. Step 2: Convert to fraction form
    11,491.08/17,220.42 = 5,235.72/x
  3. Step 3: Cross multiply
    11,491.08x = 17,220.42 × 5,235.72
  4. Step 4: Simplify right side
    11,491.08x = 90,161,297.40
  5. Step 5: Solve for x
    x = 90,161,297.40/11,491.08
  6. Step 6: Final answer
    x = 7,846.20

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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.