Home / 13,348.05-18,419.99-7,379.57

Finding the Fourth Proportional to 13,348.05, 18,419.99 and 7,379.57

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Solution

The fourth proportional to 13,348.05, 18,419.99 and 7,379.57 is: 10,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.05 : 18,419.99 = 7,379.57 : x
  2. Step 2: Convert to fraction form
    13,348.05/18,419.99 = 7,379.57/x
  3. Step 3: Cross multiply
    13,348.05x = 18,419.99 × 7,379.57
  4. Step 4: Simplify right side
    13,348.05x = 135,931,476.61
  5. Step 5: Solve for x
    x = 135,931,476.61/13,348.05
  6. Step 6: Final answer
    x = 10,183.62

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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.