Home / 7,985.18-11,966.79-4,081.43

Finding the Fourth Proportional to 7,985.18, 11,966.79 and 4,081.43

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Solution

The fourth proportional to 7,985.18, 11,966.79 and 4,081.43 is: 6,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.18 : 11,966.79 = 4,081.43 : x
  2. Step 2: Convert to fraction form
    7,985.18/11,966.79 = 4,081.43/x
  3. Step 3: Cross multiply
    7,985.18x = 11,966.79 × 4,081.43
  4. Step 4: Simplify right side
    7,985.18x = 48,841,615.71
  5. Step 5: Solve for x
    x = 48,841,615.71/7,985.18
  6. Step 6: Final answer
    x = 6,116.53

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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.