Home / 7,921.76-11,873.84-4,018.08

Finding the Fourth Proportional to 7,921.76, 11,873.84 and 4,018.08

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Solution

The fourth proportional to 7,921.76, 11,873.84 and 4,018.08 is: 6,022.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.76 : 11,873.84 = 4,018.08 : x
  2. Step 2: Convert to fraction form
    7,921.76/11,873.84 = 4,018.08/x
  3. Step 3: Cross multiply
    7,921.76x = 11,873.84 × 4,018.08
  4. Step 4: Simplify right side
    7,921.76x = 47,710,039.03
  5. Step 5: Solve for x
    x = 47,710,039.03/7,921.76
  6. Step 6: Final answer
    x = 6,022.66

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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.