Home / 7,555.35-11,331.61-3,172.85

Finding the Fourth Proportional to 7,555.35, 11,331.61 and 3,172.85

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Solution

The fourth proportional to 7,555.35, 11,331.61 and 3,172.85 is: 4,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.35 : 11,331.61 = 3,172.85 : x
  2. Step 2: Convert to fraction form
    7,555.35/11,331.61 = 3,172.85/x
  3. Step 3: Cross multiply
    7,555.35x = 11,331.61 × 3,172.85
  4. Step 4: Simplify right side
    7,555.35x = 35,953,434.20
  5. Step 5: Solve for x
    x = 35,953,434.20/7,555.35
  6. Step 6: Final answer
    x = 4,758.67

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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.