Home / 7,980.36-11,012.52-4,443.88

Finding the Fourth Proportional to 7,980.36, 11,012.52 and 4,443.88

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Solution

The fourth proportional to 7,980.36, 11,012.52 and 4,443.88 is: 6,132.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.36 : 11,012.52 = 4,443.88 : x
  2. Step 2: Convert to fraction form
    7,980.36/11,012.52 = 4,443.88/x
  3. Step 3: Cross multiply
    7,980.36x = 11,012.52 × 4,443.88
  4. Step 4: Simplify right side
    7,980.36x = 48,938,317.38
  5. Step 5: Solve for x
    x = 48,938,317.38/7,980.36
  6. Step 6: Final answer
    x = 6,132.34

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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.