Home / 13,348.45-18,419.23-7,379.29

Finding the Fourth Proportional to 13,348.45, 18,419.23 and 7,379.29

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Solution

The fourth proportional to 13,348.45, 18,419.23 and 7,379.29 is: 10,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.45 : 18,419.23 = 7,379.29 : x
  2. Step 2: Convert to fraction form
    13,348.45/18,419.23 = 7,379.29/x
  3. Step 3: Cross multiply
    13,348.45x = 18,419.23 × 7,379.29
  4. Step 4: Simplify right side
    13,348.45x = 135,920,839.75
  5. Step 5: Solve for x
    x = 135,920,839.75/13,348.45
  6. Step 6: Final answer
    x = 10,182.52

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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.