Home / 13,745.62-18,967.80-8,080.55

Finding the Fourth Proportional to 13,745.62, 18,967.80 and 8,080.55

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Solution

The fourth proportional to 13,745.62, 18,967.80 and 8,080.55 is: 11,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.62 : 18,967.80 = 8,080.55 : x
  2. Step 2: Convert to fraction form
    13,745.62/18,967.80 = 8,080.55/x
  3. Step 3: Cross multiply
    13,745.62x = 18,967.80 × 8,080.55
  4. Step 4: Simplify right side
    13,745.62x = 153,270,256.29
  5. Step 5: Solve for x
    x = 153,270,256.29/13,745.62
  6. Step 6: Final answer
    x = 11,150.48

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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.