Home / 12,740.74-19,114.99-3,975.73

Finding the Fourth Proportional to 12,740.74, 19,114.99 and 3,975.73

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Solution

The fourth proportional to 12,740.74, 19,114.99 and 3,975.73 is: 5,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.74 : 19,114.99 = 3,975.73 : x
  2. Step 2: Convert to fraction form
    12,740.74/19,114.99 = 3,975.73/x
  3. Step 3: Cross multiply
    12,740.74x = 19,114.99 × 3,975.73
  4. Step 4: Simplify right side
    12,740.74x = 75,996,088.99
  5. Step 5: Solve for x
    x = 75,996,088.99/12,740.74
  6. Step 6: Final answer
    x = 5,964.81

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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.