Home / 11,418.35-17,115.85-6,477.55

Finding the Fourth Proportional to 11,418.35, 17,115.85 and 6,477.55

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Solution

The fourth proportional to 11,418.35, 17,115.85 and 6,477.55 is: 9,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.35 : 17,115.85 = 6,477.55 : x
  2. Step 2: Convert to fraction form
    11,418.35/17,115.85 = 6,477.55/x
  3. Step 3: Cross multiply
    11,418.35x = 17,115.85 × 6,477.55
  4. Step 4: Simplify right side
    11,418.35x = 110,868,741.78
  5. Step 5: Solve for x
    x = 110,868,741.78/11,418.35
  6. Step 6: Final answer
    x = 9,709.70

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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.