Home / 12,243.92-18,368.31-4,451.72

Finding the Fourth Proportional to 12,243.92, 18,368.31 and 4,451.72

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Solution

The fourth proportional to 12,243.92, 18,368.31 and 4,451.72 is: 6,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.92 : 18,368.31 = 4,451.72 : x
  2. Step 2: Convert to fraction form
    12,243.92/18,368.31 = 4,451.72/x
  3. Step 3: Cross multiply
    12,243.92x = 18,368.31 × 4,451.72
  4. Step 4: Simplify right side
    12,243.92x = 81,770,572.99
  5. Step 5: Solve for x
    x = 81,770,572.99/12,243.92
  6. Step 6: Final answer
    x = 6,678.46

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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.