Home / 11,153.96-16,730.88-2,720.36

Finding the Fourth Proportional to 11,153.96, 16,730.88 and 2,720.36

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Solution

The fourth proportional to 11,153.96, 16,730.88 and 2,720.36 is: 4,080.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.96 : 16,730.88 = 2,720.36 : x
  2. Step 2: Convert to fraction form
    11,153.96/16,730.88 = 2,720.36/x
  3. Step 3: Cross multiply
    11,153.96x = 16,730.88 × 2,720.36
  4. Step 4: Simplify right side
    11,153.96x = 45,514,016.72
  5. Step 5: Solve for x
    x = 45,514,016.72/11,153.96
  6. Step 6: Final answer
    x = 4,080.53

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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.