Home / 8,431.86-11,646.27-5,788.02

Finding the Fourth Proportional to 8,431.86, 11,646.27 and 5,788.02

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Solution

The fourth proportional to 8,431.86, 11,646.27 and 5,788.02 is: 7,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.86 : 11,646.27 = 5,788.02 : x
  2. Step 2: Convert to fraction form
    8,431.86/11,646.27 = 5,788.02/x
  3. Step 3: Cross multiply
    8,431.86x = 11,646.27 × 5,788.02
  4. Step 4: Simplify right side
    8,431.86x = 67,408,843.69
  5. Step 5: Solve for x
    x = 67,408,843.69/8,431.86
  6. Step 6: Final answer
    x = 7,994.54

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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.