Home / 11,015.40-16,508.70-7,933.80

Finding the Fourth Proportional to 11,015.40, 16,508.70 and 7,933.80

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Solution

The fourth proportional to 11,015.40, 16,508.70 and 7,933.80 is: 11,890.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.40 : 16,508.70 = 7,933.80 : x
  2. Step 2: Convert to fraction form
    11,015.40/16,508.70 = 7,933.80/x
  3. Step 3: Cross multiply
    11,015.40x = 16,508.70 × 7,933.80
  4. Step 4: Simplify right side
    11,015.40x = 130,976,724.06
  5. Step 5: Solve for x
    x = 130,976,724.06/11,015.40
  6. Step 6: Final answer
    x = 11,890.33

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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.