Home / 11,615.85-16,029.79-6,310.71

Finding the Fourth Proportional to 11,615.85, 16,029.79 and 6,310.71

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Solution

The fourth proportional to 11,615.85, 16,029.79 and 6,310.71 is: 8,708.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.85 : 16,029.79 = 6,310.71 : x
  2. Step 2: Convert to fraction form
    11,615.85/16,029.79 = 6,310.71/x
  3. Step 3: Cross multiply
    11,615.85x = 16,029.79 × 6,310.71
  4. Step 4: Simplify right side
    11,615.85x = 101,159,340.27
  5. Step 5: Solve for x
    x = 101,159,340.27/11,615.85
  6. Step 6: Final answer
    x = 8,708.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.