Home / 7,907.85-11,837.16-4,980

Finding the Fourth Proportional to 7,907.85, 11,837.16 and 4,980

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Solution

The fourth proportional to 7,907.85, 11,837.16 and 4,980 is: 7,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.85 : 11,837.16 = 4,980 : x
  2. Step 2: Convert to fraction form
    7,907.85/11,837.16 = 4,980/x
  3. Step 3: Cross multiply
    7,907.85x = 11,837.16 × 4,980
  4. Step 4: Simplify right side
    7,907.85x = 58,949,056.80
  5. Step 5: Solve for x
    x = 58,949,056.80/7,907.85
  6. Step 6: Final answer
    x = 7,454.50

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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.