Home / 11,615.08-16,028.75-6,309.79

Finding the Fourth Proportional to 11,615.08, 16,028.75 and 6,309.79

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Solution

The fourth proportional to 11,615.08, 16,028.75 and 6,309.79 is: 8,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.08 : 16,028.75 = 6,309.79 : x
  2. Step 2: Convert to fraction form
    11,615.08/16,028.75 = 6,309.79/x
  3. Step 3: Cross multiply
    11,615.08x = 16,028.75 × 6,309.79
  4. Step 4: Simplify right side
    11,615.08x = 101,138,046.46
  5. Step 5: Solve for x
    x = 101,138,046.46/11,615.08
  6. Step 6: Final answer
    x = 8,707.48

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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.