Home / 18,704.09-25,803.50-12,322.49

Finding the Fourth Proportional to 18,704.09, 25,803.50 and 12,322.49

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Solution

The fourth proportional to 18,704.09, 25,803.50 and 12,322.49 is: 16,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.09 : 25,803.50 = 12,322.49 : x
  2. Step 2: Convert to fraction form
    18,704.09/25,803.50 = 12,322.49/x
  3. Step 3: Cross multiply
    18,704.09x = 25,803.50 × 12,322.49
  4. Step 4: Simplify right side
    18,704.09x = 317,963,466.03
  5. Step 5: Solve for x
    x = 317,963,466.03/18,704.09
  6. Step 6: Final answer
    x = 16,999.67

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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.