Home / 11,213.85-15,467.13-7,380.84

Finding the Fourth Proportional to 11,213.85, 15,467.13 and 7,380.84

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Solution

The fourth proportional to 11,213.85, 15,467.13 and 7,380.84 is: 10,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.85 : 15,467.13 = 7,380.84 : x
  2. Step 2: Convert to fraction form
    11,213.85/15,467.13 = 7,380.84/x
  3. Step 3: Cross multiply
    11,213.85x = 15,467.13 × 7,380.84
  4. Step 4: Simplify right side
    11,213.85x = 114,160,411.79
  5. Step 5: Solve for x
    x = 114,160,411.79/11,213.85
  6. Step 6: Final answer
    x = 10,180.30

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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.