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Finding the Fourth Proportional to 7,676.92, 11,511.93 and 3,518.29

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Solution

The fourth proportional to 7,676.92, 11,511.93 and 3,518.29 is: 5,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.92 : 11,511.93 = 3,518.29 : x
  2. Step 2: Convert to fraction form
    7,676.92/11,511.93 = 3,518.29/x
  3. Step 3: Cross multiply
    7,676.92x = 11,511.93 × 3,518.29
  4. Step 4: Simplify right side
    7,676.92x = 40,502,250.64
  5. Step 5: Solve for x
    x = 40,502,250.64/7,676.92
  6. Step 6: Final answer
    x = 5,275.85

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1.5x scale

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.