Home / 11,504.16-15,876-6,786.72

Finding the Fourth Proportional to 11,504.16, 15,876 and 6,786.72

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Solution

The fourth proportional to 11,504.16, 15,876 and 6,786.72 is: 9,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,504.16 : 15,876 = 6,786.72 : x
  2. Step 2: Convert to fraction form
    11,504.16/15,876 = 6,786.72/x
  3. Step 3: Cross multiply
    11,504.16x = 15,876 × 6,786.72
  4. Step 4: Simplify right side
    11,504.16x = 107,745,966.72
  5. Step 5: Solve for x
    x = 107,745,966.72/11,504.16
  6. Step 6: Final answer
    x = 9,365.83

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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.