Home / 7,989.71-11,986.43-4,031.24

Finding the Fourth Proportional to 7,989.71, 11,986.43 and 4,031.24

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Solution

The fourth proportional to 7,989.71, 11,986.43 and 4,031.24 is: 6,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.71 : 11,986.43 = 4,031.24 : x
  2. Step 2: Convert to fraction form
    7,989.71/11,986.43 = 4,031.24/x
  3. Step 3: Cross multiply
    7,989.71x = 11,986.43 × 4,031.24
  4. Step 4: Simplify right side
    7,989.71x = 48,320,095.98
  5. Step 5: Solve for x
    x = 48,320,095.98/7,989.71
  6. Step 6: Final answer
    x = 6,047.79

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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.