Home / 11,156.55-15,396.24-6,120.45

Finding the Fourth Proportional to 11,156.55, 15,396.24 and 6,120.45

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Solution

The fourth proportional to 11,156.55, 15,396.24 and 6,120.45 is: 8,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.55 : 15,396.24 = 6,120.45 : x
  2. Step 2: Convert to fraction form
    11,156.55/15,396.24 = 6,120.45/x
  3. Step 3: Cross multiply
    11,156.55x = 15,396.24 × 6,120.45
  4. Step 4: Simplify right side
    11,156.55x = 94,231,917.11
  5. Step 5: Solve for x
    x = 94,231,917.11/11,156.55
  6. Step 6: Final answer
    x = 8,446.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.