Home / 11,340.51-15,643.91-6,738.67

Finding the Fourth Proportional to 11,340.51, 15,643.91 and 6,738.67

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Solution

The fourth proportional to 11,340.51, 15,643.91 and 6,738.67 is: 9,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.51 : 15,643.91 = 6,738.67 : x
  2. Step 2: Convert to fraction form
    11,340.51/15,643.91 = 6,738.67/x
  3. Step 3: Cross multiply
    11,340.51x = 15,643.91 × 6,738.67
  4. Step 4: Simplify right side
    11,340.51x = 105,419,120.45
  5. Step 5: Solve for x
    x = 105,419,120.45/11,340.51
  6. Step 6: Final answer
    x = 9,295.80

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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.