Home / 13,621.92-20,473.65-11,297.22

Finding the Fourth Proportional to 13,621.92, 20,473.65 and 11,297.22

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Solution

The fourth proportional to 13,621.92, 20,473.65 and 11,297.22 is: 16,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.92 : 20,473.65 = 11,297.22 : x
  2. Step 2: Convert to fraction form
    13,621.92/20,473.65 = 11,297.22/x
  3. Step 3: Cross multiply
    13,621.92x = 20,473.65 × 11,297.22
  4. Step 4: Simplify right side
    13,621.92x = 231,295,328.25
  5. Step 5: Solve for x
    x = 231,295,328.25/13,621.92
  6. Step 6: Final answer
    x = 16,979.64

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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.