Home / 10,638.93-15,958.35-4,788.69

Finding the Fourth Proportional to 10,638.93, 15,958.35 and 4,788.69

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Solution

The fourth proportional to 10,638.93, 15,958.35 and 4,788.69 is: 7,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.93 : 15,958.35 = 4,788.69 : x
  2. Step 2: Convert to fraction form
    10,638.93/15,958.35 = 4,788.69/x
  3. Step 3: Cross multiply
    10,638.93x = 15,958.35 × 4,788.69
  4. Step 4: Simplify right side
    10,638.93x = 76,419,591.06
  5. Step 5: Solve for x
    x = 76,419,591.06/10,638.93
  6. Step 6: Final answer
    x = 7,183.01

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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.