Home / 13,589.34-18,735.92-8,800.82

Finding the Fourth Proportional to 13,589.34, 18,735.92 and 8,800.82

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Solution

The fourth proportional to 13,589.34, 18,735.92 and 8,800.82 is: 12,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.34 : 18,735.92 = 8,800.82 : x
  2. Step 2: Convert to fraction form
    13,589.34/18,735.92 = 8,800.82/x
  3. Step 3: Cross multiply
    13,589.34x = 18,735.92 × 8,800.82
  4. Step 4: Simplify right side
    13,589.34x = 164,891,474.54
  5. Step 5: Solve for x
    x = 164,891,474.54/13,589.34
  6. Step 6: Final answer
    x = 12,133.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.