Home / 7,676.60-11,513.66-2,745.40

Finding the Fourth Proportional to 7,676.60, 11,513.66 and 2,745.40

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Solution

The fourth proportional to 7,676.60, 11,513.66 and 2,745.40 is: 4,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.60 : 11,513.66 = 2,745.40 : x
  2. Step 2: Convert to fraction form
    7,676.60/11,513.66 = 2,745.40/x
  3. Step 3: Cross multiply
    7,676.60x = 11,513.66 × 2,745.40
  4. Step 4: Simplify right side
    7,676.60x = 31,609,602.16
  5. Step 5: Solve for x
    x = 31,609,602.16/7,676.60
  6. Step 6: Final answer
    x = 4,117.66

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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.