Home / 12,072.79-18,105.44-5,828.92

Finding the Fourth Proportional to 12,072.79, 18,105.44 and 5,828.92

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Solution

The fourth proportional to 12,072.79, 18,105.44 and 5,828.92 is: 8,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.79 : 18,105.44 = 5,828.92 : x
  2. Step 2: Convert to fraction form
    12,072.79/18,105.44 = 5,828.92/x
  3. Step 3: Cross multiply
    12,072.79x = 18,105.44 × 5,828.92
  4. Step 4: Simplify right side
    12,072.79x = 105,535,132.18
  5. Step 5: Solve for x
    x = 105,535,132.18/12,072.79
  6. Step 6: Final answer
    x = 8,741.57

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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.