Home / 7,921.19-11,873.59-3,239.19

Finding the Fourth Proportional to 7,921.19, 11,873.59 and 3,239.19

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Solution

The fourth proportional to 7,921.19, 11,873.59 and 3,239.19 is: 4,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.19 : 11,873.59 = 3,239.19 : x
  2. Step 2: Convert to fraction form
    7,921.19/11,873.59 = 3,239.19/x
  3. Step 3: Cross multiply
    7,921.19x = 11,873.59 × 3,239.19
  4. Step 4: Simplify right side
    7,921.19x = 38,460,805.89
  5. Step 5: Solve for x
    x = 38,460,805.89/7,921.19
  6. Step 6: Final answer
    x = 4,855.43

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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.