Home / 13,480.12-20,226.71-5,474.69

Finding the Fourth Proportional to 13,480.12, 20,226.71 and 5,474.69

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Solution

The fourth proportional to 13,480.12, 20,226.71 and 5,474.69 is: 8,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.12 : 20,226.71 = 5,474.69 : x
  2. Step 2: Convert to fraction form
    13,480.12/20,226.71 = 5,474.69/x
  3. Step 3: Cross multiply
    13,480.12x = 20,226.71 × 5,474.69
  4. Step 4: Simplify right side
    13,480.12x = 110,734,955.37
  5. Step 5: Solve for x
    x = 110,734,955.37/13,480.12
  6. Step 6: Final answer
    x = 8,214.69

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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.