Home / 8,994.12-12,394.33-6,471.78

Finding the Fourth Proportional to 8,994.12, 12,394.33 and 6,471.78

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Solution

The fourth proportional to 8,994.12, 12,394.33 and 6,471.78 is: 8,918.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.12 : 12,394.33 = 6,471.78 : x
  2. Step 2: Convert to fraction form
    8,994.12/12,394.33 = 6,471.78/x
  3. Step 3: Cross multiply
    8,994.12x = 12,394.33 × 6,471.78
  4. Step 4: Simplify right side
    8,994.12x = 80,213,377.01
  5. Step 5: Solve for x
    x = 80,213,377.01/8,994.12
  6. Step 6: Final answer
    x = 8,918.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.