Home / 10,977.90-16,464.99-3,078.60

Finding the Fourth Proportional to 10,977.90, 16,464.99 and 3,078.60

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Solution

The fourth proportional to 10,977.90, 16,464.99 and 3,078.60 is: 4,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.90 : 16,464.99 = 3,078.60 : x
  2. Step 2: Convert to fraction form
    10,977.90/16,464.99 = 3,078.60/x
  3. Step 3: Cross multiply
    10,977.90x = 16,464.99 × 3,078.60
  4. Step 4: Simplify right side
    10,977.90x = 50,689,118.21
  5. Step 5: Solve for x
    x = 50,689,118.21/10,977.90
  6. Step 6: Final answer
    x = 4,617.38

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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.