Home / 11,615.06-16,028.76-6,309.86

Finding the Fourth Proportional to 11,615.06, 16,028.76 and 6,309.86

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Solution

The fourth proportional to 11,615.06, 16,028.76 and 6,309.86 is: 8,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.06 : 16,028.76 = 6,309.86 : x
  2. Step 2: Convert to fraction form
    11,615.06/16,028.76 = 6,309.86/x
  3. Step 3: Cross multiply
    11,615.06x = 16,028.76 × 6,309.86
  4. Step 4: Simplify right side
    11,615.06x = 101,139,231.57
  5. Step 5: Solve for x
    x = 101,139,231.57/11,615.06
  6. Step 6: Final answer
    x = 8,707.59

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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.