Home / 13,347.74-18,419.76-7,379.56

Finding the Fourth Proportional to 13,347.74, 18,419.76 and 7,379.56

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Solution

The fourth proportional to 13,347.74, 18,419.76 and 7,379.56 is: 10,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.74 : 18,419.76 = 7,379.56 : x
  2. Step 2: Convert to fraction form
    13,347.74/18,419.76 = 7,379.56/x
  3. Step 3: Cross multiply
    13,347.74x = 18,419.76 × 7,379.56
  4. Step 4: Simplify right side
    13,347.74x = 135,929,724.11
  5. Step 5: Solve for x
    x = 135,929,724.11/13,347.74
  6. Step 6: Final answer
    x = 10,183.73

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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.