Home / 12,582.06-18,878.21-6,343.87

Finding the Fourth Proportional to 12,582.06, 18,878.21 and 6,343.87

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Solution

The fourth proportional to 12,582.06, 18,878.21 and 6,343.87 is: 9,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.06 : 18,878.21 = 6,343.87 : x
  2. Step 2: Convert to fraction form
    12,582.06/18,878.21 = 6,343.87/x
  3. Step 3: Cross multiply
    12,582.06x = 18,878.21 × 6,343.87
  4. Step 4: Simplify right side
    12,582.06x = 119,760,910.07
  5. Step 5: Solve for x
    x = 119,760,910.07/12,582.06
  6. Step 6: Final answer
    x = 9,518.39

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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.