Home / 10,811.61-16,216.21-2,914.92

Finding the Fourth Proportional to 10,811.61, 16,216.21 and 2,914.92

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Solution

The fourth proportional to 10,811.61, 16,216.21 and 2,914.92 is: 4,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.61 : 16,216.21 = 2,914.92 : x
  2. Step 2: Convert to fraction form
    10,811.61/16,216.21 = 2,914.92/x
  3. Step 3: Cross multiply
    10,811.61x = 16,216.21 × 2,914.92
  4. Step 4: Simplify right side
    10,811.61x = 47,268,873.77
  5. Step 5: Solve for x
    x = 47,268,873.77/10,811.61
  6. Step 6: Final answer
    x = 4,372.05

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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.