Home / 13,633.82-20,437.77-8,689.58

Finding the Fourth Proportional to 13,633.82, 20,437.77 and 8,689.58

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Solution

The fourth proportional to 13,633.82, 20,437.77 and 8,689.58 is: 13,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.82 : 20,437.77 = 8,689.58 : x
  2. Step 2: Convert to fraction form
    13,633.82/20,437.77 = 8,689.58/x
  3. Step 3: Cross multiply
    13,633.82x = 20,437.77 × 8,689.58
  4. Step 4: Simplify right side
    13,633.82x = 177,595,637.44
  5. Step 5: Solve for x
    x = 177,595,637.44/13,633.82
  6. Step 6: Final answer
    x = 13,026.11

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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.