Home / 13,329.60-19,945.80-12,163.20

Finding the Fourth Proportional to 13,329.60, 19,945.80 and 12,163.20

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Solution

The fourth proportional to 13,329.60, 19,945.80 and 12,163.20 is: 18,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.60 : 19,945.80 = 12,163.20 : x
  2. Step 2: Convert to fraction form
    13,329.60/19,945.80 = 12,163.20/x
  3. Step 3: Cross multiply
    13,329.60x = 19,945.80 × 12,163.20
  4. Step 4: Simplify right side
    13,329.60x = 242,604,754.56
  5. Step 5: Solve for x
    x = 242,604,754.56/13,329.60
  6. Step 6: Final answer
    x = 18,200.45

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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.