Home / 13,349.72-18,422.42-7,381.26

Finding the Fourth Proportional to 13,349.72, 18,422.42 and 7,381.26

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Solution

The fourth proportional to 13,349.72, 18,422.42 and 7,381.26 is: 10,186.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.72 : 18,422.42 = 7,381.26 : x
  2. Step 2: Convert to fraction form
    13,349.72/18,422.42 = 7,381.26/x
  3. Step 3: Cross multiply
    13,349.72x = 18,422.42 × 7,381.26
  4. Step 4: Simplify right side
    13,349.72x = 135,980,634.94
  5. Step 5: Solve for x
    x = 135,980,634.94/13,349.72
  6. Step 6: Final answer
    x = 10,186.03

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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.