Home / 13,348.67-18,419.75-7,379.37

Finding the Fourth Proportional to 13,348.67, 18,419.75 and 7,379.37

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Solution

The fourth proportional to 13,348.67, 18,419.75 and 7,379.37 is: 10,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.67 : 18,419.75 = 7,379.37 : x
  2. Step 2: Convert to fraction form
    13,348.67/18,419.75 = 7,379.37/x
  3. Step 3: Cross multiply
    13,348.67x = 18,419.75 × 7,379.37
  4. Step 4: Simplify right side
    13,348.67x = 135,926,113.66
  5. Step 5: Solve for x
    x = 135,926,113.66/13,348.67
  6. Step 6: Final answer
    x = 10,182.75

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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.