Home / 13,438.62-20,161.56-4,674.02

Finding the Fourth Proportional to 13,438.62, 20,161.56 and 4,674.02

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Solution

The fourth proportional to 13,438.62, 20,161.56 and 4,674.02 is: 7,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.62 : 20,161.56 = 4,674.02 : x
  2. Step 2: Convert to fraction form
    13,438.62/20,161.56 = 4,674.02/x
  3. Step 3: Cross multiply
    13,438.62x = 20,161.56 × 4,674.02
  4. Step 4: Simplify right side
    13,438.62x = 94,235,534.67
  5. Step 5: Solve for x
    x = 94,235,534.67/13,438.62
  6. Step 6: Final answer
    x = 7,012.29

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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.