Home / 11,113.38-15,334.91-6,396.76

Finding the Fourth Proportional to 11,113.38, 15,334.91 and 6,396.76

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Solution

The fourth proportional to 11,113.38, 15,334.91 and 6,396.76 is: 8,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.38 : 15,334.91 = 6,396.76 : x
  2. Step 2: Convert to fraction form
    11,113.38/15,334.91 = 6,396.76/x
  3. Step 3: Cross multiply
    11,113.38x = 15,334.91 × 6,396.76
  4. Step 4: Simplify right side
    11,113.38x = 98,093,738.89
  5. Step 5: Solve for x
    x = 98,093,738.89/11,113.38
  6. Step 6: Final answer
    x = 8,826.63

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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.