Home / 8,929.88-13,394.94-3,380.56

Finding the Fourth Proportional to 8,929.88, 13,394.94 and 3,380.56

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Solution

The fourth proportional to 8,929.88, 13,394.94 and 3,380.56 is: 5,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.88 : 13,394.94 = 3,380.56 : x
  2. Step 2: Convert to fraction form
    8,929.88/13,394.94 = 3,380.56/x
  3. Step 3: Cross multiply
    8,929.88x = 13,394.94 × 3,380.56
  4. Step 4: Simplify right side
    8,929.88x = 45,282,398.37
  5. Step 5: Solve for x
    x = 45,282,398.37/8,929.88
  6. Step 6: Final answer
    x = 5,070.89

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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.