Home / 13,221.65-19,832.22-3,226.46

Finding the Fourth Proportional to 13,221.65, 19,832.22 and 3,226.46

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Solution

The fourth proportional to 13,221.65, 19,832.22 and 3,226.46 is: 4,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.65 : 19,832.22 = 3,226.46 : x
  2. Step 2: Convert to fraction form
    13,221.65/19,832.22 = 3,226.46/x
  3. Step 3: Cross multiply
    13,221.65x = 19,832.22 × 3,226.46
  4. Step 4: Simplify right side
    13,221.65x = 63,987,848.41
  5. Step 5: Solve for x
    x = 63,987,848.41/13,221.65
  6. Step 6: Final answer
    x = 4,839.63

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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.