Home / 13,399.63-20,099.75-5,083.56

Finding the Fourth Proportional to 13,399.63, 20,099.75 and 5,083.56

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Solution

The fourth proportional to 13,399.63, 20,099.75 and 5,083.56 is: 7,625.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.63 : 20,099.75 = 5,083.56 : x
  2. Step 2: Convert to fraction form
    13,399.63/20,099.75 = 5,083.56/x
  3. Step 3: Cross multiply
    13,399.63x = 20,099.75 × 5,083.56
  4. Step 4: Simplify right side
    13,399.63x = 102,178,259.69
  5. Step 5: Solve for x
    x = 102,178,259.69/13,399.63
  6. Step 6: Final answer
    x = 7,625.46

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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.