Home / 13,422.36-20,133.56-5,100.42

Finding the Fourth Proportional to 13,422.36, 20,133.56 and 5,100.42

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Solution

The fourth proportional to 13,422.36, 20,133.56 and 5,100.42 is: 7,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.36 : 20,133.56 = 5,100.42 : x
  2. Step 2: Convert to fraction form
    13,422.36/20,133.56 = 5,100.42/x
  3. Step 3: Cross multiply
    13,422.36x = 20,133.56 × 5,100.42
  4. Step 4: Simplify right side
    13,422.36x = 102,689,586.59
  5. Step 5: Solve for x
    x = 102,689,586.59/13,422.36
  6. Step 6: Final answer
    x = 7,650.64

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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.