Home / 13,330.26-19,983.67-5,439.42

Finding the Fourth Proportional to 13,330.26, 19,983.67 and 5,439.42

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Solution

The fourth proportional to 13,330.26, 19,983.67 and 5,439.42 is: 8,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.26 : 19,983.67 = 5,439.42 : x
  2. Step 2: Convert to fraction form
    13,330.26/19,983.67 = 5,439.42/x
  3. Step 3: Cross multiply
    13,330.26x = 19,983.67 × 5,439.42
  4. Step 4: Simplify right side
    13,330.26x = 108,699,485.73
  5. Step 5: Solve for x
    x = 108,699,485.73/13,330.26
  6. Step 6: Final answer
    x = 8,154.34

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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.