Home / 19,135.64-28,709.94-8,604.56

Finding the Fourth Proportional to 19,135.64, 28,709.94 and 8,604.56

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Solution

The fourth proportional to 19,135.64, 28,709.94 and 8,604.56 is: 12,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.64 : 28,709.94 = 8,604.56 : x
  2. Step 2: Convert to fraction form
    19,135.64/28,709.94 = 8,604.56/x
  3. Step 3: Cross multiply
    19,135.64x = 28,709.94 × 8,604.56
  4. Step 4: Simplify right side
    19,135.64x = 247,036,401.33
  5. Step 5: Solve for x
    x = 247,036,401.33/19,135.64
  6. Step 6: Final answer
    x = 12,909.75

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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.