Home / 18,359.60-25,340.30-12,072.56

Finding the Fourth Proportional to 18,359.60, 25,340.30 and 12,072.56

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Solution

The fourth proportional to 18,359.60, 25,340.30 and 12,072.56 is: 16,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.60 : 25,340.30 = 12,072.56 : x
  2. Step 2: Convert to fraction form
    18,359.60/25,340.30 = 12,072.56/x
  3. Step 3: Cross multiply
    18,359.60x = 25,340.30 × 12,072.56
  4. Step 4: Simplify right side
    18,359.60x = 305,922,292.17
  5. Step 5: Solve for x
    x = 305,922,292.17/18,359.60
  6. Step 6: Final answer
    x = 16,662.80

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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.