Home / 13,038.24-18,004.49-8,330.73

Finding the Fourth Proportional to 13,038.24, 18,004.49 and 8,330.73

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Solution

The fourth proportional to 13,038.24, 18,004.49 and 8,330.73 is: 11,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.24 : 18,004.49 = 8,330.73 : x
  2. Step 2: Convert to fraction form
    13,038.24/18,004.49 = 8,330.73/x
  3. Step 3: Cross multiply
    13,038.24x = 18,004.49 × 8,330.73
  4. Step 4: Simplify right side
    13,038.24x = 149,990,544.98
  5. Step 5: Solve for x
    x = 149,990,544.98/13,038.24
  6. Step 6: Final answer
    x = 11,503.90

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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.