Home / 13,616.93-20,422.97-3,621.74

Finding the Fourth Proportional to 13,616.93, 20,422.97 and 3,621.74

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Solution

The fourth proportional to 13,616.93, 20,422.97 and 3,621.74 is: 5,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.93 : 20,422.97 = 3,621.74 : x
  2. Step 2: Convert to fraction form
    13,616.93/20,422.97 = 3,621.74/x
  3. Step 3: Cross multiply
    13,616.93x = 20,422.97 × 3,621.74
  4. Step 4: Simplify right side
    13,616.93x = 73,966,567.14
  5. Step 5: Solve for x
    x = 73,966,567.14/13,616.93
  6. Step 6: Final answer
    x = 5,431.96

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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.