Home / 7,985.74-11,986.01-4,039.80

Finding the Fourth Proportional to 7,985.74, 11,986.01 and 4,039.80

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Solution

The fourth proportional to 7,985.74, 11,986.01 and 4,039.80 is: 6,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.74 : 11,986.01 = 4,039.80 : x
  2. Step 2: Convert to fraction form
    7,985.74/11,986.01 = 4,039.80/x
  3. Step 3: Cross multiply
    7,985.74x = 11,986.01 × 4,039.80
  4. Step 4: Simplify right side
    7,985.74x = 48,421,083.20
  5. Step 5: Solve for x
    x = 48,421,083.20/7,985.74
  6. Step 6: Final answer
    x = 6,063.44

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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.