Home / 13,347.92-18,419.15-7,379.66

Finding the Fourth Proportional to 13,347.92, 18,419.15 and 7,379.66

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Solution

The fourth proportional to 13,347.92, 18,419.15 and 7,379.66 is: 10,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.92 : 18,419.15 = 7,379.66 : x
  2. Step 2: Convert to fraction form
    13,347.92/18,419.15 = 7,379.66/x
  3. Step 3: Cross multiply
    13,347.92x = 18,419.15 × 7,379.66
  4. Step 4: Simplify right side
    13,347.92x = 135,926,990.84
  5. Step 5: Solve for x
    x = 135,926,990.84/13,347.92
  6. Step 6: Final answer
    x = 10,183.39

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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.