Home / 7,929.95-11,885.92-6,161.81

Finding the Fourth Proportional to 7,929.95, 11,885.92 and 6,161.81

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Solution

The fourth proportional to 7,929.95, 11,885.92 and 6,161.81 is: 9,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.95 : 11,885.92 = 6,161.81 : x
  2. Step 2: Convert to fraction form
    7,929.95/11,885.92 = 6,161.81/x
  3. Step 3: Cross multiply
    7,929.95x = 11,885.92 × 6,161.81
  4. Step 4: Simplify right side
    7,929.95x = 73,238,705.88
  5. Step 5: Solve for x
    x = 73,238,705.88/7,929.95
  6. Step 6: Final answer
    x = 9,235.71

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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.