Home / 11,078.84-15,291.17-6,365.72

Finding the Fourth Proportional to 11,078.84, 15,291.17 and 6,365.72

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Solution

The fourth proportional to 11,078.84, 15,291.17 and 6,365.72 is: 8,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.84 : 15,291.17 = 6,365.72 : x
  2. Step 2: Convert to fraction form
    11,078.84/15,291.17 = 6,365.72/x
  3. Step 3: Cross multiply
    11,078.84x = 15,291.17 × 6,365.72
  4. Step 4: Simplify right side
    11,078.84x = 97,339,198.41
  5. Step 5: Solve for x
    x = 97,339,198.41/11,078.84
  6. Step 6: Final answer
    x = 8,786.05

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1.5x scale

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.