Home / 14,504.28-20,019.66-8,919.96

Finding the Fourth Proportional to 14,504.28, 20,019.66 and 8,919.96

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Solution

The fourth proportional to 14,504.28, 20,019.66 and 8,919.96 is: 12,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.28 : 20,019.66 = 8,919.96 : x
  2. Step 2: Convert to fraction form
    14,504.28/20,019.66 = 8,919.96/x
  3. Step 3: Cross multiply
    14,504.28x = 20,019.66 × 8,919.96
  4. Step 4: Simplify right side
    14,504.28x = 178,574,566.41
  5. Step 5: Solve for x
    x = 178,574,566.41/14,504.28
  6. Step 6: Final answer
    x = 12,311.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.