Home / 13,067.81-18,033.60-7,099.49

Finding the Fourth Proportional to 13,067.81, 18,033.60 and 7,099.49

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Solution

The fourth proportional to 13,067.81, 18,033.60 and 7,099.49 is: 9,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.81 : 18,033.60 = 7,099.49 : x
  2. Step 2: Convert to fraction form
    13,067.81/18,033.60 = 7,099.49/x
  3. Step 3: Cross multiply
    13,067.81x = 18,033.60 × 7,099.49
  4. Step 4: Simplify right side
    13,067.81x = 128,029,272.70
  5. Step 5: Solve for x
    x = 128,029,272.70/13,067.81
  6. Step 6: Final answer
    x = 9,797.30

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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.