Home / 7,618.85-11,408.22-6,130.15

Finding the Fourth Proportional to 7,618.85, 11,408.22 and 6,130.15

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Solution

The fourth proportional to 7,618.85, 11,408.22 and 6,130.15 is: 9,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.85 : 11,408.22 = 6,130.15 : x
  2. Step 2: Convert to fraction form
    7,618.85/11,408.22 = 6,130.15/x
  3. Step 3: Cross multiply
    7,618.85x = 11,408.22 × 6,130.15
  4. Step 4: Simplify right side
    7,618.85x = 69,934,099.83
  5. Step 5: Solve for x
    x = 69,934,099.83/7,618.85
  6. Step 6: Final answer
    x = 9,179.09

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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.