Home / 13,479.08-20,216.34-3,617.54

Finding the Fourth Proportional to 13,479.08, 20,216.34 and 3,617.54

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Solution

The fourth proportional to 13,479.08, 20,216.34 and 3,617.54 is: 5,425.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.08 : 20,216.34 = 3,617.54 : x
  2. Step 2: Convert to fraction form
    13,479.08/20,216.34 = 3,617.54/x
  3. Step 3: Cross multiply
    13,479.08x = 20,216.34 × 3,617.54
  4. Step 4: Simplify right side
    13,479.08x = 73,133,418.60
  5. Step 5: Solve for x
    x = 73,133,418.60/13,479.08
  6. Step 6: Final answer
    x = 5,425.70

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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.