Home / 13,480.08-20,217.84-3,618.54

Finding the Fourth Proportional to 13,480.08, 20,217.84 and 3,618.54

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Solution

The fourth proportional to 13,480.08, 20,217.84 and 3,618.54 is: 5,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.08 : 20,217.84 = 3,618.54 : x
  2. Step 2: Convert to fraction form
    13,480.08/20,217.84 = 3,618.54/x
  3. Step 3: Cross multiply
    13,480.08x = 20,217.84 × 3,618.54
  4. Step 4: Simplify right side
    13,480.08x = 73,159,062.75
  5. Step 5: Solve for x
    x = 73,159,062.75/13,480.08
  6. Step 6: Final answer
    x = 5,427.20

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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.