Home / 19,809.43-29,718.63-6,661.44

Finding the Fourth Proportional to 19,809.43, 29,718.63 and 6,661.44

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Solution

The fourth proportional to 19,809.43, 29,718.63 and 6,661.44 is: 9,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.43 : 29,718.63 = 6,661.44 : x
  2. Step 2: Convert to fraction form
    19,809.43/29,718.63 = 6,661.44/x
  3. Step 3: Cross multiply
    19,809.43x = 29,718.63 × 6,661.44
  4. Step 4: Simplify right side
    19,809.43x = 197,968,870.63
  5. Step 5: Solve for x
    x = 197,968,870.63/19,809.43
  6. Step 6: Final answer
    x = 9,993.67

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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.