Home / 7,968.98-11,949.60-2,421.32

Finding the Fourth Proportional to 7,968.98, 11,949.60 and 2,421.32

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Solution

The fourth proportional to 7,968.98, 11,949.60 and 2,421.32 is: 3,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.98 : 11,949.60 = 2,421.32 : x
  2. Step 2: Convert to fraction form
    7,968.98/11,949.60 = 2,421.32/x
  3. Step 3: Cross multiply
    7,968.98x = 11,949.60 × 2,421.32
  4. Step 4: Simplify right side
    7,968.98x = 28,933,805.47
  5. Step 5: Solve for x
    x = 28,933,805.47/7,968.98
  6. Step 6: Final answer
    x = 3,630.80

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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.