Home / 9,122.12-13,662.68-5,554.58

Finding the Fourth Proportional to 9,122.12, 13,662.68 and 5,554.58

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Solution

The fourth proportional to 9,122.12, 13,662.68 and 5,554.58 is: 8,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.12 : 13,662.68 = 5,554.58 : x
  2. Step 2: Convert to fraction form
    9,122.12/13,662.68 = 5,554.58/x
  3. Step 3: Cross multiply
    9,122.12x = 13,662.68 × 5,554.58
  4. Step 4: Simplify right side
    9,122.12x = 75,890,352.99
  5. Step 5: Solve for x
    x = 75,890,352.99/9,122.12
  6. Step 6: Final answer
    x = 8,319.38

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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.