Home / 8,954.45-13,431.69-3,111.08

Finding the Fourth Proportional to 8,954.45, 13,431.69 and 3,111.08

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Solution

The fourth proportional to 8,954.45, 13,431.69 and 3,111.08 is: 4,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.45 : 13,431.69 = 3,111.08 : x
  2. Step 2: Convert to fraction form
    8,954.45/13,431.69 = 3,111.08/x
  3. Step 3: Cross multiply
    8,954.45x = 13,431.69 × 3,111.08
  4. Step 4: Simplify right side
    8,954.45x = 41,786,994.97
  5. Step 5: Solve for x
    x = 41,786,994.97/8,954.45
  6. Step 6: Final answer
    x = 4,666.62

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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.