Home / 11,003.72-15,189.86-6,755.47

Finding the Fourth Proportional to 11,003.72, 15,189.86 and 6,755.47

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Solution

The fourth proportional to 11,003.72, 15,189.86 and 6,755.47 is: 9,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.72 : 15,189.86 = 6,755.47 : x
  2. Step 2: Convert to fraction form
    11,003.72/15,189.86 = 6,755.47/x
  3. Step 3: Cross multiply
    11,003.72x = 15,189.86 × 6,755.47
  4. Step 4: Simplify right side
    11,003.72x = 102,614,622.45
  5. Step 5: Solve for x
    x = 102,614,622.45/11,003.72
  6. Step 6: Final answer
    x = 9,325.45

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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.