Home / 13,347.92-18,418.56-7,379.62

Finding the Fourth Proportional to 13,347.92, 18,418.56 and 7,379.62

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Solution

The fourth proportional to 13,347.92, 18,418.56 and 7,379.62 is: 10,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.92 : 18,418.56 = 7,379.62 : x
  2. Step 2: Convert to fraction form
    13,347.92/18,418.56 = 7,379.62/x
  3. Step 3: Cross multiply
    13,347.92x = 18,418.56 × 7,379.62
  4. Step 4: Simplify right side
    13,347.92x = 135,921,973.75
  5. Step 5: Solve for x
    x = 135,921,973.75/13,347.92
  6. Step 6: Final answer
    x = 10,183.01

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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.