Home / 13,614.36-20,438.82-11,575.32

Finding the Fourth Proportional to 13,614.36, 20,438.82 and 11,575.32

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Solution

The fourth proportional to 13,614.36, 20,438.82 and 11,575.32 is: 17,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.36 : 20,438.82 = 11,575.32 : x
  2. Step 2: Convert to fraction form
    13,614.36/20,438.82 = 11,575.32/x
  3. Step 3: Cross multiply
    13,614.36x = 20,438.82 × 11,575.32
  4. Step 4: Simplify right side
    13,614.36x = 236,585,881.92
  5. Step 5: Solve for x
    x = 236,585,881.92/13,614.36
  6. Step 6: Final answer
    x = 17,377.67

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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.