Home / 7,926.31-11,885.55-2,659.51

Finding the Fourth Proportional to 7,926.31, 11,885.55 and 2,659.51

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Solution

The fourth proportional to 7,926.31, 11,885.55 and 2,659.51 is: 3,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.31 : 11,885.55 = 2,659.51 : x
  2. Step 2: Convert to fraction form
    7,926.31/11,885.55 = 2,659.51/x
  3. Step 3: Cross multiply
    7,926.31x = 11,885.55 × 2,659.51
  4. Step 4: Simplify right side
    7,926.31x = 31,609,739.08
  5. Step 5: Solve for x
    x = 31,609,739.08/7,926.31
  6. Step 6: Final answer
    x = 3,987.95

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1.5x scale

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.