Home / 13,753.13-20,630.49-3,891.58

Finding the Fourth Proportional to 13,753.13, 20,630.49 and 3,891.58

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Solution

The fourth proportional to 13,753.13, 20,630.49 and 3,891.58 is: 5,837.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.13 : 20,630.49 = 3,891.58 : x
  2. Step 2: Convert to fraction form
    13,753.13/20,630.49 = 3,891.58/x
  3. Step 3: Cross multiply
    13,753.13x = 20,630.49 × 3,891.58
  4. Step 4: Simplify right side
    13,753.13x = 80,285,182.82
  5. Step 5: Solve for x
    x = 80,285,182.82/13,753.13
  6. Step 6: Final answer
    x = 5,837.59

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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.