Home / 11,191.56-16,778.86-9,649.72

Finding the Fourth Proportional to 11,191.56, 16,778.86 and 9,649.72

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Solution

The fourth proportional to 11,191.56, 16,778.86 and 9,649.72 is: 14,467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.56 : 16,778.86 = 9,649.72 : x
  2. Step 2: Convert to fraction form
    11,191.56/16,778.86 = 9,649.72/x
  3. Step 3: Cross multiply
    11,191.56x = 16,778.86 × 9,649.72
  4. Step 4: Simplify right side
    11,191.56x = 161,911,300.92
  5. Step 5: Solve for x
    x = 161,911,300.92/11,191.56
  6. Step 6: Final answer
    x = 14,467.27

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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.