Home / 13,161.68-18,163.50-7,193.60

Finding the Fourth Proportional to 13,161.68, 18,163.50 and 7,193.60

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Solution

The fourth proportional to 13,161.68, 18,163.50 and 7,193.60 is: 9,927.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.68 : 18,163.50 = 7,193.60 : x
  2. Step 2: Convert to fraction form
    13,161.68/18,163.50 = 7,193.60/x
  3. Step 3: Cross multiply
    13,161.68x = 18,163.50 × 7,193.60
  4. Step 4: Simplify right side
    13,161.68x = 130,660,953.60
  5. Step 5: Solve for x
    x = 130,660,953.60/13,161.68
  6. Step 6: Final answer
    x = 9,927.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.