Home / 18,555.97-25,598.32-12,180.01

Finding the Fourth Proportional to 18,555.97, 25,598.32 and 12,180.01

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Solution

The fourth proportional to 18,555.97, 25,598.32 and 12,180.01 is: 16,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.97 : 25,598.32 = 12,180.01 : x
  2. Step 2: Convert to fraction form
    18,555.97/25,598.32 = 12,180.01/x
  3. Step 3: Cross multiply
    18,555.97x = 25,598.32 × 12,180.01
  4. Step 4: Simplify right side
    18,555.97x = 311,787,793.58
  5. Step 5: Solve for x
    x = 311,787,793.58/18,555.97
  6. Step 6: Final answer
    x = 16,802.56

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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.