Home / 18,665.74-27,998.67-12,804.58

Finding the Fourth Proportional to 18,665.74, 27,998.67 and 12,804.58

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Solution

The fourth proportional to 18,665.74, 27,998.67 and 12,804.58 is: 19,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.74 : 27,998.67 = 12,804.58 : x
  2. Step 2: Convert to fraction form
    18,665.74/27,998.67 = 12,804.58/x
  3. Step 3: Cross multiply
    18,665.74x = 27,998.67 × 12,804.58
  4. Step 4: Simplify right side
    18,665.74x = 358,511,209.91
  5. Step 5: Solve for x
    x = 358,511,209.91/18,665.74
  6. Step 6: Final answer
    x = 19,206.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.