Home / 11,122.42-15,352.78-6,408.58

Finding the Fourth Proportional to 11,122.42, 15,352.78 and 6,408.58

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Solution

The fourth proportional to 11,122.42, 15,352.78 and 6,408.58 is: 8,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.42 : 15,352.78 = 6,408.58 : x
  2. Step 2: Convert to fraction form
    11,122.42/15,352.78 = 6,408.58/x
  3. Step 3: Cross multiply
    11,122.42x = 15,352.78 × 6,408.58
  4. Step 4: Simplify right side
    11,122.42x = 98,389,518.85
  5. Step 5: Solve for x
    x = 98,389,518.85/11,122.42
  6. Step 6: Final answer
    x = 8,846.05

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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.