Home / 13,502.37-20,187-11,445.39

Finding the Fourth Proportional to 13,502.37, 20,187 and 11,445.39

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Solution

The fourth proportional to 13,502.37, 20,187 and 11,445.39 is: 17,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.37 : 20,187 = 11,445.39 : x
  2. Step 2: Convert to fraction form
    13,502.37/20,187 = 11,445.39/x
  3. Step 3: Cross multiply
    13,502.37x = 20,187 × 11,445.39
  4. Step 4: Simplify right side
    13,502.37x = 231,048,087.93
  5. Step 5: Solve for x
    x = 231,048,087.93/13,502.37
  6. Step 6: Final answer
    x = 17,111.67

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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.