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Finding the Fourth Proportional to 8,994.78, 13,486.32 and 3,728.34

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Solution

The fourth proportional to 8,994.78, 13,486.32 and 3,728.34 is: 5,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.78 : 13,486.32 = 3,728.34 : x
  2. Step 2: Convert to fraction form
    8,994.78/13,486.32 = 3,728.34/x
  3. Step 3: Cross multiply
    8,994.78x = 13,486.32 × 3,728.34
  4. Step 4: Simplify right side
    8,994.78x = 50,281,586.31
  5. Step 5: Solve for x
    x = 50,281,586.31/8,994.78
  6. Step 6: Final answer
    x = 5,590.09

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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.