Home / 7,948.87-11,918.62-3,018.86

Finding the Fourth Proportional to 7,948.87, 11,918.62 and 3,018.86

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Solution

The fourth proportional to 7,948.87, 11,918.62 and 3,018.86 is: 4,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.87 : 11,918.62 = 3,018.86 : x
  2. Step 2: Convert to fraction form
    7,948.87/11,918.62 = 3,018.86/x
  3. Step 3: Cross multiply
    7,948.87x = 11,918.62 × 3,018.86
  4. Step 4: Simplify right side
    7,948.87x = 35,980,645.17
  5. Step 5: Solve for x
    x = 35,980,645.17/7,948.87
  6. Step 6: Final answer
    x = 4,526.51

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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.