Home / 7,980.22-11,012.79-4,443.63

Finding the Fourth Proportional to 7,980.22, 11,012.79 and 4,443.63

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Solution

The fourth proportional to 7,980.22, 11,012.79 and 4,443.63 is: 6,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.22 : 11,012.79 = 4,443.63 : x
  2. Step 2: Convert to fraction form
    7,980.22/11,012.79 = 4,443.63/x
  3. Step 3: Cross multiply
    7,980.22x = 11,012.79 × 4,443.63
  4. Step 4: Simplify right side
    7,980.22x = 48,936,764.03
  5. Step 5: Solve for x
    x = 48,936,764.03/7,980.22
  6. Step 6: Final answer
    x = 6,132.26

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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.