Home / 12,503.26-18,738.60-11,179.30

Finding the Fourth Proportional to 12,503.26, 18,738.60 and 11,179.30

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Solution

The fourth proportional to 12,503.26, 18,738.60 and 11,179.30 is: 16,754.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.26 : 18,738.60 = 11,179.30 : x
  2. Step 2: Convert to fraction form
    12,503.26/18,738.60 = 11,179.30/x
  3. Step 3: Cross multiply
    12,503.26x = 18,738.60 × 11,179.30
  4. Step 4: Simplify right side
    12,503.26x = 209,484,430.98
  5. Step 5: Solve for x
    x = 209,484,430.98/12,503.26
  6. Step 6: Final answer
    x = 16,754.38

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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.