Home / 13,490.82-20,220.30-6,086.58

Finding the Fourth Proportional to 13,490.82, 20,220.30 and 6,086.58

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Solution

The fourth proportional to 13,490.82, 20,220.30 and 6,086.58 is: 9,122.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.82 : 20,220.30 = 6,086.58 : x
  2. Step 2: Convert to fraction form
    13,490.82/20,220.30 = 6,086.58/x
  3. Step 3: Cross multiply
    13,490.82x = 20,220.30 × 6,086.58
  4. Step 4: Simplify right side
    13,490.82x = 123,072,473.57
  5. Step 5: Solve for x
    x = 123,072,473.57/13,490.82
  6. Step 6: Final answer
    x = 9,122.68

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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.