Home / 13,385.63-20,081.86-11,017.44

Finding the Fourth Proportional to 13,385.63, 20,081.86 and 11,017.44

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Solution

The fourth proportional to 13,385.63, 20,081.86 and 11,017.44 is: 16,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.63 : 20,081.86 = 11,017.44 : x
  2. Step 2: Convert to fraction form
    13,385.63/20,081.86 = 11,017.44/x
  3. Step 3: Cross multiply
    13,385.63x = 20,081.86 × 11,017.44
  4. Step 4: Simplify right side
    13,385.63x = 221,250,660.09
  5. Step 5: Solve for x
    x = 221,250,660.09/13,385.63
  6. Step 6: Final answer
    x = 16,528.97

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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.