Home / 12,811.07-19,219.44-3,927.62

Finding the Fourth Proportional to 12,811.07, 19,219.44 and 3,927.62

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Solution

The fourth proportional to 12,811.07, 19,219.44 and 3,927.62 is: 5,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.07 : 19,219.44 = 3,927.62 : x
  2. Step 2: Convert to fraction form
    12,811.07/19,219.44 = 3,927.62/x
  3. Step 3: Cross multiply
    12,811.07x = 19,219.44 × 3,927.62
  4. Step 4: Simplify right side
    12,811.07x = 75,486,637.29
  5. Step 5: Solve for x
    x = 75,486,637.29/12,811.07
  6. Step 6: Final answer
    x = 5,892.30

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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.