Home / 8,072.06-11,139.99-4,929.98

Finding the Fourth Proportional to 8,072.06, 11,139.99 and 4,929.98

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Solution

The fourth proportional to 8,072.06, 11,139.99 and 4,929.98 is: 6,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.06 : 11,139.99 = 4,929.98 : x
  2. Step 2: Convert to fraction form
    8,072.06/11,139.99 = 4,929.98/x
  3. Step 3: Cross multiply
    8,072.06x = 11,139.99 × 4,929.98
  4. Step 4: Simplify right side
    8,072.06x = 54,919,927.90
  5. Step 5: Solve for x
    x = 54,919,927.90/8,072.06
  6. Step 6: Final answer
    x = 6,803.71

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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.