Home / 10,977.21-16,465.75-3,581.68

Finding the Fourth Proportional to 10,977.21, 16,465.75 and 3,581.68

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Solution

The fourth proportional to 10,977.21, 16,465.75 and 3,581.68 is: 5,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.21 : 16,465.75 = 3,581.68 : x
  2. Step 2: Convert to fraction form
    10,977.21/16,465.75 = 3,581.68/x
  3. Step 3: Cross multiply
    10,977.21x = 16,465.75 × 3,581.68
  4. Step 4: Simplify right side
    10,977.21x = 58,975,006.30
  5. Step 5: Solve for x
    x = 58,975,006.30/10,977.21
  6. Step 6: Final answer
    x = 5,372.49

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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.