Home / 8,722.36-13,083.84-3,458.37

Finding the Fourth Proportional to 8,722.36, 13,083.84 and 3,458.37

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Solution

The fourth proportional to 8,722.36, 13,083.84 and 3,458.37 is: 5,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.36 : 13,083.84 = 3,458.37 : x
  2. Step 2: Convert to fraction form
    8,722.36/13,083.84 = 3,458.37/x
  3. Step 3: Cross multiply
    8,722.36x = 13,083.84 × 3,458.37
  4. Step 4: Simplify right side
    8,722.36x = 45,248,759.74
  5. Step 5: Solve for x
    x = 45,248,759.74/8,722.36
  6. Step 6: Final answer
    x = 5,187.67

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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.