Home / 12,192.73-18,289.09-3,427.65

Finding the Fourth Proportional to 12,192.73, 18,289.09 and 3,427.65

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Solution

The fourth proportional to 12,192.73, 18,289.09 and 3,427.65 is: 5,141.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.73 : 18,289.09 = 3,427.65 : x
  2. Step 2: Convert to fraction form
    12,192.73/18,289.09 = 3,427.65/x
  3. Step 3: Cross multiply
    12,192.73x = 18,289.09 × 3,427.65
  4. Step 4: Simplify right side
    12,192.73x = 62,688,599.34
  5. Step 5: Solve for x
    x = 62,688,599.34/12,192.73
  6. Step 6: Final answer
    x = 5,141.47

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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.