Home / 13,678.82-20,518.23-10,563.36

Finding the Fourth Proportional to 13,678.82, 20,518.23 and 10,563.36

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Solution

The fourth proportional to 13,678.82, 20,518.23 and 10,563.36 is: 15,845.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.82 : 20,518.23 = 10,563.36 : x
  2. Step 2: Convert to fraction form
    13,678.82/20,518.23 = 10,563.36/x
  3. Step 3: Cross multiply
    13,678.82x = 20,518.23 × 10,563.36
  4. Step 4: Simplify right side
    13,678.82x = 216,741,468.72
  5. Step 5: Solve for x
    x = 216,741,468.72/13,678.82
  6. Step 6: Final answer
    x = 15,845.04

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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.