Home / 13,365.24-18,438.79-8,584.53

Finding the Fourth Proportional to 13,365.24, 18,438.79 and 8,584.53

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Solution

The fourth proportional to 13,365.24, 18,438.79 and 8,584.53 is: 11,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.24 : 18,438.79 = 8,584.53 : x
  2. Step 2: Convert to fraction form
    13,365.24/18,438.79 = 8,584.53/x
  3. Step 3: Cross multiply
    13,365.24x = 18,438.79 × 8,584.53
  4. Step 4: Simplify right side
    13,365.24x = 158,288,258.44
  5. Step 5: Solve for x
    x = 158,288,258.44/13,365.24
  6. Step 6: Final answer
    x = 11,843.28

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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.