Home / 7,926.72-11,886-2,659.92

Finding the Fourth Proportional to 7,926.72, 11,886 and 2,659.92

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Solution

The fourth proportional to 7,926.72, 11,886 and 2,659.92 is: 3,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.72 : 11,886 = 2,659.92 : x
  2. Step 2: Convert to fraction form
    7,926.72/11,886 = 2,659.92/x
  3. Step 3: Cross multiply
    7,926.72x = 11,886 × 2,659.92
  4. Step 4: Simplify right side
    7,926.72x = 31,615,809.12
  5. Step 5: Solve for x
    x = 31,615,809.12/7,926.72
  6. Step 6: Final answer
    x = 3,988.51

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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.