Home / 8,162.45-12,237.89-4,212.02

Finding the Fourth Proportional to 8,162.45, 12,237.89 and 4,212.02

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Solution

The fourth proportional to 8,162.45, 12,237.89 and 4,212.02 is: 6,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.45 : 12,237.89 = 4,212.02 : x
  2. Step 2: Convert to fraction form
    8,162.45/12,237.89 = 4,212.02/x
  3. Step 3: Cross multiply
    8,162.45x = 12,237.89 × 4,212.02
  4. Step 4: Simplify right side
    8,162.45x = 51,546,216.38
  5. Step 5: Solve for x
    x = 51,546,216.38/8,162.45
  6. Step 6: Final answer
    x = 6,315.05

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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.