Home / 13,604.23-18,777.50-8,226.77

Finding the Fourth Proportional to 13,604.23, 18,777.50 and 8,226.77

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Solution

The fourth proportional to 13,604.23, 18,777.50 and 8,226.77 is: 11,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.23 : 18,777.50 = 8,226.77 : x
  2. Step 2: Convert to fraction form
    13,604.23/18,777.50 = 8,226.77/x
  3. Step 3: Cross multiply
    13,604.23x = 18,777.50 × 8,226.77
  4. Step 4: Simplify right side
    13,604.23x = 154,478,173.68
  5. Step 5: Solve for x
    x = 154,478,173.68/13,604.23
  6. Step 6: Final answer
    x = 11,355.16

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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.