Home / 13,367.75-18,447.80-7,399.67

Finding the Fourth Proportional to 13,367.75, 18,447.80 and 7,399.67

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Solution

The fourth proportional to 13,367.75, 18,447.80 and 7,399.67 is: 10,211.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.75 : 18,447.80 = 7,399.67 : x
  2. Step 2: Convert to fraction form
    13,367.75/18,447.80 = 7,399.67/x
  3. Step 3: Cross multiply
    13,367.75x = 18,447.80 × 7,399.67
  4. Step 4: Simplify right side
    13,367.75x = 136,507,502.99
  5. Step 5: Solve for x
    x = 136,507,502.99/13,367.75
  6. Step 6: Final answer
    x = 10,211.71

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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.