Home / 11,499.21-15,868.85-6,722.37

Finding the Fourth Proportional to 11,499.21, 15,868.85 and 6,722.37

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Solution

The fourth proportional to 11,499.21, 15,868.85 and 6,722.37 is: 9,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,499.21 : 15,868.85 = 6,722.37 : x
  2. Step 2: Convert to fraction form
    11,499.21/15,868.85 = 6,722.37/x
  3. Step 3: Cross multiply
    11,499.21x = 15,868.85 × 6,722.37
  4. Step 4: Simplify right side
    11,499.21x = 106,676,247.56
  5. Step 5: Solve for x
    x = 106,676,247.56/11,499.21
  6. Step 6: Final answer
    x = 9,276.83

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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.