Home / 13,499.87-18,628.92-8,463.89

Finding the Fourth Proportional to 13,499.87, 18,628.92 and 8,463.89

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Solution

The fourth proportional to 13,499.87, 18,628.92 and 8,463.89 is: 11,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.87 : 18,628.92 = 8,463.89 : x
  2. Step 2: Convert to fraction form
    13,499.87/18,628.92 = 8,463.89/x
  3. Step 3: Cross multiply
    13,499.87x = 18,628.92 × 8,463.89
  4. Step 4: Simplify right side
    13,499.87x = 157,673,129.70
  5. Step 5: Solve for x
    x = 157,673,129.70/13,499.87
  6. Step 6: Final answer
    x = 11,679.60

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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.