Home / 11,108.88-15,331.55-6,330.56

Finding the Fourth Proportional to 11,108.88, 15,331.55 and 6,330.56

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Solution

The fourth proportional to 11,108.88, 15,331.55 and 6,330.56 is: 8,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.88 : 15,331.55 = 6,330.56 : x
  2. Step 2: Convert to fraction form
    11,108.88/15,331.55 = 6,330.56/x
  3. Step 3: Cross multiply
    11,108.88x = 15,331.55 × 6,330.56
  4. Step 4: Simplify right side
    11,108.88x = 97,057,188.86
  5. Step 5: Solve for x
    x = 97,057,188.86/11,108.88
  6. Step 6: Final answer
    x = 8,736.90

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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.