Home / 19,119.75-28,676.66-9,766.68

Finding the Fourth Proportional to 19,119.75, 28,676.66 and 9,766.68

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Solution

The fourth proportional to 19,119.75, 28,676.66 and 9,766.68 is: 14,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.75 : 28,676.66 = 9,766.68 : x
  2. Step 2: Convert to fraction form
    19,119.75/28,676.66 = 9,766.68/x
  3. Step 3: Cross multiply
    19,119.75x = 28,676.66 × 9,766.68
  4. Step 4: Simplify right side
    19,119.75x = 280,075,740.91
  5. Step 5: Solve for x
    x = 280,075,740.91/19,119.75
  6. Step 6: Final answer
    x = 14,648.51

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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.