Home / 11,007.72-15,186.24-6,291

Finding the Fourth Proportional to 11,007.72, 15,186.24 and 6,291

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Solution

The fourth proportional to 11,007.72, 15,186.24 and 6,291 is: 8,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.72 : 15,186.24 = 6,291 : x
  2. Step 2: Convert to fraction form
    11,007.72/15,186.24 = 6,291/x
  3. Step 3: Cross multiply
    11,007.72x = 15,186.24 × 6,291
  4. Step 4: Simplify right side
    11,007.72x = 95,536,635.84
  5. Step 5: Solve for x
    x = 95,536,635.84/11,007.72
  6. Step 6: Final answer
    x = 8,679.06

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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.