Home / 13,305.48-18,363.75-8,003.22

Finding the Fourth Proportional to 13,305.48, 18,363.75 and 8,003.22

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Solution

The fourth proportional to 13,305.48, 18,363.75 and 8,003.22 is: 11,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.48 : 18,363.75 = 8,003.22 : x
  2. Step 2: Convert to fraction form
    13,305.48/18,363.75 = 8,003.22/x
  3. Step 3: Cross multiply
    13,305.48x = 18,363.75 × 8,003.22
  4. Step 4: Simplify right side
    13,305.48x = 146,969,131.28
  5. Step 5: Solve for x
    x = 146,969,131.28/13,305.48
  6. Step 6: Final answer
    x = 11,045.76

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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.