Home / 13,260.45-19,899.62-5,469.09

Finding the Fourth Proportional to 13,260.45, 19,899.62 and 5,469.09

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Solution

The fourth proportional to 13,260.45, 19,899.62 and 5,469.09 is: 8,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.45 : 19,899.62 = 5,469.09 : x
  2. Step 2: Convert to fraction form
    13,260.45/19,899.62 = 5,469.09/x
  3. Step 3: Cross multiply
    13,260.45x = 19,899.62 × 5,469.09
  4. Step 4: Simplify right side
    13,260.45x = 108,832,812.75
  5. Step 5: Solve for x
    x = 108,832,812.75/13,260.45
  6. Step 6: Final answer
    x = 8,207.32

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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.