Home / 11,118.58-16,686.07-8,953.45

Finding the Fourth Proportional to 11,118.58, 16,686.07 and 8,953.45

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Solution

The fourth proportional to 11,118.58, 16,686.07 and 8,953.45 is: 13,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.58 : 16,686.07 = 8,953.45 : x
  2. Step 2: Convert to fraction form
    11,118.58/16,686.07 = 8,953.45/x
  3. Step 3: Cross multiply
    11,118.58x = 16,686.07 × 8,953.45
  4. Step 4: Simplify right side
    11,118.58x = 149,397,893.44
  5. Step 5: Solve for x
    x = 149,397,893.44/11,118.58
  6. Step 6: Final answer
    x = 13,436.78

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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.