Home / 7,558.11-11,315.30-4,922.78

Finding the Fourth Proportional to 7,558.11, 11,315.30 and 4,922.78

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Solution

The fourth proportional to 7,558.11, 11,315.30 and 4,922.78 is: 7,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.11 : 11,315.30 = 4,922.78 : x
  2. Step 2: Convert to fraction form
    7,558.11/11,315.30 = 4,922.78/x
  3. Step 3: Cross multiply
    7,558.11x = 11,315.30 × 4,922.78
  4. Step 4: Simplify right side
    7,558.11x = 55,702,651.34
  5. Step 5: Solve for x
    x = 55,702,651.34/7,558.11
  6. Step 6: Final answer
    x = 7,369.92

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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.