Home / 11,719.46-16,174.41-7,539.86

Finding the Fourth Proportional to 11,719.46, 16,174.41 and 7,539.86

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Solution

The fourth proportional to 11,719.46, 16,174.41 and 7,539.86 is: 10,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.46 : 16,174.41 = 7,539.86 : x
  2. Step 2: Convert to fraction form
    11,719.46/16,174.41 = 7,539.86/x
  3. Step 3: Cross multiply
    11,719.46x = 16,174.41 × 7,539.86
  4. Step 4: Simplify right side
    11,719.46x = 121,952,786.98
  5. Step 5: Solve for x
    x = 121,952,786.98/11,719.46
  6. Step 6: Final answer
    x = 10,406.01

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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.