Home / 12,469.37-18,704.08-9,986.35

Finding the Fourth Proportional to 12,469.37, 18,704.08 and 9,986.35

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Solution

The fourth proportional to 12,469.37, 18,704.08 and 9,986.35 is: 14,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.37 : 18,704.08 = 9,986.35 : x
  2. Step 2: Convert to fraction form
    12,469.37/18,704.08 = 9,986.35/x
  3. Step 3: Cross multiply
    12,469.37x = 18,704.08 × 9,986.35
  4. Step 4: Simplify right side
    12,469.37x = 186,785,439.42
  5. Step 5: Solve for x
    x = 186,785,439.42/12,469.37
  6. Step 6: Final answer
    x = 14,979.54

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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.