Home / 12,768.76-19,153.64-4,449.62

Finding the Fourth Proportional to 12,768.76, 19,153.64 and 4,449.62

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Solution

The fourth proportional to 12,768.76, 19,153.64 and 4,449.62 is: 6,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.76 : 19,153.64 = 4,449.62 : x
  2. Step 2: Convert to fraction form
    12,768.76/19,153.64 = 4,449.62/x
  3. Step 3: Cross multiply
    12,768.76x = 19,153.64 × 4,449.62
  4. Step 4: Simplify right side
    12,768.76x = 85,226,323.85
  5. Step 5: Solve for x
    x = 85,226,323.85/12,768.76
  6. Step 6: Final answer
    x = 6,674.60

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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.