Home / 12,765.48-19,148.24-3,880.84

Finding the Fourth Proportional to 12,765.48, 19,148.24 and 3,880.84

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Solution

The fourth proportional to 12,765.48, 19,148.24 and 3,880.84 is: 5,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.48 : 19,148.24 = 3,880.84 : x
  2. Step 2: Convert to fraction form
    12,765.48/19,148.24 = 3,880.84/x
  3. Step 3: Cross multiply
    12,765.48x = 19,148.24 × 3,880.84
  4. Step 4: Simplify right side
    12,765.48x = 74,311,255.72
  5. Step 5: Solve for x
    x = 74,311,255.72/12,765.48
  6. Step 6: Final answer
    x = 5,821.27

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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.