Home / 14,059.41-19,400.61-7,771.78

Finding the Fourth Proportional to 14,059.41, 19,400.61 and 7,771.78

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Solution

The fourth proportional to 14,059.41, 19,400.61 and 7,771.78 is: 10,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.41 : 19,400.61 = 7,771.78 : x
  2. Step 2: Convert to fraction form
    14,059.41/19,400.61 = 7,771.78/x
  3. Step 3: Cross multiply
    14,059.41x = 19,400.61 × 7,771.78
  4. Step 4: Simplify right side
    14,059.41x = 150,777,272.79
  5. Step 5: Solve for x
    x = 150,777,272.79/14,059.41
  6. Step 6: Final answer
    x = 10,724.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.