Home / 12,081.55-18,107.45-5,759.76

Finding the Fourth Proportional to 12,081.55, 18,107.45 and 5,759.76

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Solution

The fourth proportional to 12,081.55, 18,107.45 and 5,759.76 is: 8,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.55 : 18,107.45 = 5,759.76 : x
  2. Step 2: Convert to fraction form
    12,081.55/18,107.45 = 5,759.76/x
  3. Step 3: Cross multiply
    12,081.55x = 18,107.45 × 5,759.76
  4. Step 4: Simplify right side
    12,081.55x = 104,294,491.11
  5. Step 5: Solve for x
    x = 104,294,491.11/12,081.55
  6. Step 6: Final answer
    x = 8,632.54

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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.