Home / 11,156.90-16,743.44-8,991.77

Finding the Fourth Proportional to 11,156.90, 16,743.44 and 8,991.77

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Solution

The fourth proportional to 11,156.90, 16,743.44 and 8,991.77 is: 13,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.90 : 16,743.44 = 8,991.77 : x
  2. Step 2: Convert to fraction form
    11,156.90/16,743.44 = 8,991.77/x
  3. Step 3: Cross multiply
    11,156.90x = 16,743.44 × 8,991.77
  4. Step 4: Simplify right side
    11,156.90x = 150,553,161.49
  5. Step 5: Solve for x
    x = 150,553,161.49/11,156.90
  6. Step 6: Final answer
    x = 13,494.18

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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.