Home / 13,619.36-18,793.80-7,651.60

Finding the Fourth Proportional to 13,619.36, 18,793.80 and 7,651.60

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Solution

The fourth proportional to 13,619.36, 18,793.80 and 7,651.60 is: 10,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.36 : 18,793.80 = 7,651.60 : x
  2. Step 2: Convert to fraction form
    13,619.36/18,793.80 = 7,651.60/x
  3. Step 3: Cross multiply
    13,619.36x = 18,793.80 × 7,651.60
  4. Step 4: Simplify right side
    13,619.36x = 143,802,640.08
  5. Step 5: Solve for x
    x = 143,802,640.08/13,619.36
  6. Step 6: Final answer
    x = 10,558.69

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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.