Home / 7,929.33-11,893.05-2,086.40

Finding the Fourth Proportional to 7,929.33, 11,893.05 and 2,086.40

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Solution

The fourth proportional to 7,929.33, 11,893.05 and 2,086.40 is: 3,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.33 : 11,893.05 = 2,086.40 : x
  2. Step 2: Convert to fraction form
    7,929.33/11,893.05 = 2,086.40/x
  3. Step 3: Cross multiply
    7,929.33x = 11,893.05 × 2,086.40
  4. Step 4: Simplify right side
    7,929.33x = 24,813,600.05
  5. Step 5: Solve for x
    x = 24,813,600.05/7,929.33
  6. Step 6: Final answer
    x = 3,129.34

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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.