Home / 9,078.48-13,622.96-3,813.08

Finding the Fourth Proportional to 9,078.48, 13,622.96 and 3,813.08

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Solution

The fourth proportional to 9,078.48, 13,622.96 and 3,813.08 is: 5,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.48 : 13,622.96 = 3,813.08 : x
  2. Step 2: Convert to fraction form
    9,078.48/13,622.96 = 3,813.08/x
  3. Step 3: Cross multiply
    9,078.48x = 13,622.96 × 3,813.08
  4. Step 4: Simplify right side
    9,078.48x = 51,945,367.01
  5. Step 5: Solve for x
    x = 51,945,367.01/9,078.48
  6. Step 6: Final answer
    x = 5,721.81

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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.