Home / 13,499.88-18,628.92-8,463.90

Finding the Fourth Proportional to 13,499.88, 18,628.92 and 8,463.90

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Solution

The fourth proportional to 13,499.88, 18,628.92 and 8,463.90 is: 11,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.88 : 18,628.92 = 8,463.90 : x
  2. Step 2: Convert to fraction form
    13,499.88/18,628.92 = 8,463.90/x
  3. Step 3: Cross multiply
    13,499.88x = 18,628.92 × 8,463.90
  4. Step 4: Simplify right side
    13,499.88x = 157,673,315.99
  5. Step 5: Solve for x
    x = 157,673,315.99/13,499.88
  6. Step 6: Final answer
    x = 11,679.61

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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.