Home / 11,122.44-15,352.80-6,408.60

Finding the Fourth Proportional to 11,122.44, 15,352.80 and 6,408.60

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Solution

The fourth proportional to 11,122.44, 15,352.80 and 6,408.60 is: 8,846.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.44 : 15,352.80 = 6,408.60 : x
  2. Step 2: Convert to fraction form
    11,122.44/15,352.80 = 6,408.60/x
  3. Step 3: Cross multiply
    11,122.44x = 15,352.80 × 6,408.60
  4. Step 4: Simplify right side
    11,122.44x = 98,389,954.08
  5. Step 5: Solve for x
    x = 98,389,954.08/11,122.44
  6. Step 6: Final answer
    x = 8,846.08

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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.