Home / 12,313.62-18,479.44-4,920.24

Finding the Fourth Proportional to 12,313.62, 18,479.44 and 4,920.24

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Solution

The fourth proportional to 12,313.62, 18,479.44 and 4,920.24 is: 7,383.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.62 : 18,479.44 = 4,920.24 : x
  2. Step 2: Convert to fraction form
    12,313.62/18,479.44 = 4,920.24/x
  3. Step 3: Cross multiply
    12,313.62x = 18,479.44 × 4,920.24
  4. Step 4: Simplify right side
    12,313.62x = 90,923,355.31
  5. Step 5: Solve for x
    x = 90,923,355.31/12,313.62
  6. Step 6: Final answer
    x = 7,383.97

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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.