Home / 13,347.24-18,419.07-7,379.06

Finding the Fourth Proportional to 13,347.24, 18,419.07 and 7,379.06

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Solution

The fourth proportional to 13,347.24, 18,419.07 and 7,379.06 is: 10,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.24 : 18,419.07 = 7,379.06 : x
  2. Step 2: Convert to fraction form
    13,347.24/18,419.07 = 7,379.06/x
  3. Step 3: Cross multiply
    13,347.24x = 18,419.07 × 7,379.06
  4. Step 4: Simplify right side
    13,347.24x = 135,915,422.67
  5. Step 5: Solve for x
    x = 135,915,422.67/13,347.24
  6. Step 6: Final answer
    x = 10,183.04

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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.