Home / 8,676.18-11,968.62-5,319.78

Finding the Fourth Proportional to 8,676.18, 11,968.62 and 5,319.78

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Solution

The fourth proportional to 8,676.18, 11,968.62 and 5,319.78 is: 7,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.18 : 11,968.62 = 5,319.78 : x
  2. Step 2: Convert to fraction form
    8,676.18/11,968.62 = 5,319.78/x
  3. Step 3: Cross multiply
    8,676.18x = 11,968.62 × 5,319.78
  4. Step 4: Simplify right side
    8,676.18x = 63,670,425.30
  5. Step 5: Solve for x
    x = 63,670,425.30/8,676.18
  6. Step 6: Final answer
    x = 7,338.53

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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.