Home / 13,704.64-18,912.26-8,038.30

Finding the Fourth Proportional to 13,704.64, 18,912.26 and 8,038.30

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Solution

The fourth proportional to 13,704.64, 18,912.26 and 8,038.30 is: 11,092.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.64 : 18,912.26 = 8,038.30 : x
  2. Step 2: Convert to fraction form
    13,704.64/18,912.26 = 8,038.30/x
  3. Step 3: Cross multiply
    13,704.64x = 18,912.26 × 8,038.30
  4. Step 4: Simplify right side
    13,704.64x = 152,022,399.46
  5. Step 5: Solve for x
    x = 152,022,399.46/13,704.64
  6. Step 6: Final answer
    x = 11,092.77

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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.