Home / 9,219.09-13,829.90-2,977.03

Finding the Fourth Proportional to 9,219.09, 13,829.90 and 2,977.03

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Solution

The fourth proportional to 9,219.09, 13,829.90 and 2,977.03 is: 4,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.09 : 13,829.90 = 2,977.03 : x
  2. Step 2: Convert to fraction form
    9,219.09/13,829.90 = 2,977.03/x
  3. Step 3: Cross multiply
    9,219.09x = 13,829.90 × 2,977.03
  4. Step 4: Simplify right side
    9,219.09x = 41,172,027.20
  5. Step 5: Solve for x
    x = 41,172,027.20/9,219.09
  6. Step 6: Final answer
    x = 4,465.95

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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.