Home / 14,399.79-21,568.42-6,988.67

Finding the Fourth Proportional to 14,399.79, 21,568.42 and 6,988.67

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Solution

The fourth proportional to 14,399.79, 21,568.42 and 6,988.67 is: 10,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.79 : 21,568.42 = 6,988.67 : x
  2. Step 2: Convert to fraction form
    14,399.79/21,568.42 = 6,988.67/x
  3. Step 3: Cross multiply
    14,399.79x = 21,568.42 × 6,988.67
  4. Step 4: Simplify right side
    14,399.79x = 150,734,569.80
  5. Step 5: Solve for x
    x = 150,734,569.80/14,399.79
  6. Step 6: Final answer
    x = 10,467.83

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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.