Home / 8,408.25-11,603.70-4,631.22

Finding the Fourth Proportional to 8,408.25, 11,603.70 and 4,631.22

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Solution

The fourth proportional to 8,408.25, 11,603.70 and 4,631.22 is: 6,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.25 : 11,603.70 = 4,631.22 : x
  2. Step 2: Convert to fraction form
    8,408.25/11,603.70 = 4,631.22/x
  3. Step 3: Cross multiply
    8,408.25x = 11,603.70 × 4,631.22
  4. Step 4: Simplify right side
    8,408.25x = 53,739,287.51
  5. Step 5: Solve for x
    x = 53,739,287.51/8,408.25
  6. Step 6: Final answer
    x = 6,391.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.