Home / 13,236.48-18,260.52-8,199.36

Finding the Fourth Proportional to 13,236.48, 18,260.52 and 8,199.36

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Solution

The fourth proportional to 13,236.48, 18,260.52 and 8,199.36 is: 11,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.48 : 18,260.52 = 8,199.36 : x
  2. Step 2: Convert to fraction form
    13,236.48/18,260.52 = 8,199.36/x
  3. Step 3: Cross multiply
    13,236.48x = 18,260.52 × 8,199.36
  4. Step 4: Simplify right side
    13,236.48x = 149,724,577.27
  5. Step 5: Solve for x
    x = 149,724,577.27/13,236.48
  6. Step 6: Final answer
    x = 11,311.51

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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.