Home / 18,003.87-24,816.92-12,690.27

Finding the Fourth Proportional to 18,003.87, 24,816.92 and 12,690.27

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Solution

The fourth proportional to 18,003.87, 24,816.92 and 12,690.27 is: 17,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.87 : 24,816.92 = 12,690.27 : x
  2. Step 2: Convert to fraction form
    18,003.87/24,816.92 = 12,690.27/x
  3. Step 3: Cross multiply
    18,003.87x = 24,816.92 × 12,690.27
  4. Step 4: Simplify right side
    18,003.87x = 314,933,351.92
  5. Step 5: Solve for x
    x = 314,933,351.92/18,003.87
  6. Step 6: Final answer
    x = 17,492.54

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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.