Home / 13,995.41-20,987.64-6,198.75

Finding the Fourth Proportional to 13,995.41, 20,987.64 and 6,198.75

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Solution

The fourth proportional to 13,995.41, 20,987.64 and 6,198.75 is: 9,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.41 : 20,987.64 = 6,198.75 : x
  2. Step 2: Convert to fraction form
    13,995.41/20,987.64 = 6,198.75/x
  3. Step 3: Cross multiply
    13,995.41x = 20,987.64 × 6,198.75
  4. Step 4: Simplify right side
    13,995.41x = 130,097,133.45
  5. Step 5: Solve for x
    x = 130,097,133.45/13,995.41
  6. Step 6: Final answer
    x = 9,295.70

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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.