Home / 11,409.42-17,123.85-6,722.57

Finding the Fourth Proportional to 11,409.42, 17,123.85 and 6,722.57

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Solution

The fourth proportional to 11,409.42, 17,123.85 and 6,722.57 is: 10,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.42 : 17,123.85 = 6,722.57 : x
  2. Step 2: Convert to fraction form
    11,409.42/17,123.85 = 6,722.57/x
  3. Step 3: Cross multiply
    11,409.42x = 17,123.85 × 6,722.57
  4. Step 4: Simplify right side
    11,409.42x = 115,116,194.68
  5. Step 5: Solve for x
    x = 115,116,194.68/11,409.42
  6. Step 6: Final answer
    x = 10,089.57

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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.