Home / 13,381.45-18,467.54-7,414.99

Finding the Fourth Proportional to 13,381.45, 18,467.54 and 7,414.99

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Solution

The fourth proportional to 13,381.45, 18,467.54 and 7,414.99 is: 10,233.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.45 : 18,467.54 = 7,414.99 : x
  2. Step 2: Convert to fraction form
    13,381.45/18,467.54 = 7,414.99/x
  3. Step 3: Cross multiply
    13,381.45x = 18,467.54 × 7,414.99
  4. Step 4: Simplify right side
    13,381.45x = 136,936,587.35
  5. Step 5: Solve for x
    x = 136,936,587.35/13,381.45
  6. Step 6: Final answer
    x = 10,233.31

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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.