Home / 7,506.61-11,249.89-3,121.67

Finding the Fourth Proportional to 7,506.61, 11,249.89 and 3,121.67

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Solution

The fourth proportional to 7,506.61, 11,249.89 and 3,121.67 is: 4,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,506.61 : 11,249.89 = 3,121.67 : x
  2. Step 2: Convert to fraction form
    7,506.61/11,249.89 = 3,121.67/x
  3. Step 3: Cross multiply
    7,506.61x = 11,249.89 × 3,121.67
  4. Step 4: Simplify right side
    7,506.61x = 35,118,464.44
  5. Step 5: Solve for x
    x = 35,118,464.44/7,506.61
  6. Step 6: Final answer
    x = 4,678.34

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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.