Home / 7,929.34-11,893.08-2,086.42

Finding the Fourth Proportional to 7,929.34, 11,893.08 and 2,086.42

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Solution

The fourth proportional to 7,929.34, 11,893.08 and 2,086.42 is: 3,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.34 : 11,893.08 = 2,086.42 : x
  2. Step 2: Convert to fraction form
    7,929.34/11,893.08 = 2,086.42/x
  3. Step 3: Cross multiply
    7,929.34x = 11,893.08 × 2,086.42
  4. Step 4: Simplify right side
    7,929.34x = 24,813,959.97
  5. Step 5: Solve for x
    x = 24,813,959.97/7,929.34
  6. Step 6: Final answer
    x = 3,129.39

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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.