Home / 7,986.06-11,985.30-5,212.02

Finding the Fourth Proportional to 7,986.06, 11,985.30 and 5,212.02

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Solution

The fourth proportional to 7,986.06, 11,985.30 and 5,212.02 is: 7,822.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.06 : 11,985.30 = 5,212.02 : x
  2. Step 2: Convert to fraction form
    7,986.06/11,985.30 = 5,212.02/x
  3. Step 3: Cross multiply
    7,986.06x = 11,985.30 × 5,212.02
  4. Step 4: Simplify right side
    7,986.06x = 62,467,623.31
  5. Step 5: Solve for x
    x = 62,467,623.31/7,986.06
  6. Step 6: Final answer
    x = 7,822.08

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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.