Home / 13,347.53-18,419.32-7,379.45

Finding the Fourth Proportional to 13,347.53, 18,419.32 and 7,379.45

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Solution

The fourth proportional to 13,347.53, 18,419.32 and 7,379.45 is: 10,183.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.53 : 18,419.32 = 7,379.45 : x
  2. Step 2: Convert to fraction form
    13,347.53/18,419.32 = 7,379.45/x
  3. Step 3: Cross multiply
    13,347.53x = 18,419.32 × 7,379.45
  4. Step 4: Simplify right side
    13,347.53x = 135,924,450.97
  5. Step 5: Solve for x
    x = 135,924,450.97/13,347.53
  6. Step 6: Final answer
    x = 10,183.49

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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.