Home / 13,044.56-18,000.78-7,379.96

Finding the Fourth Proportional to 13,044.56, 18,000.78 and 7,379.96

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Solution

The fourth proportional to 13,044.56, 18,000.78 and 7,379.96 is: 10,183.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,044.56 : 18,000.78 = 7,379.96 : x
  2. Step 2: Convert to fraction form
    13,044.56/18,000.78 = 7,379.96/x
  3. Step 3: Cross multiply
    13,044.56x = 18,000.78 × 7,379.96
  4. Step 4: Simplify right side
    13,044.56x = 132,845,036.37
  5. Step 5: Solve for x
    x = 132,845,036.37/13,044.56
  6. Step 6: Final answer
    x = 10,183.94

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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.