Home / 13,202.15-18,219.47-7,234.34

Finding the Fourth Proportional to 13,202.15, 18,219.47 and 7,234.34

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Solution

The fourth proportional to 13,202.15, 18,219.47 and 7,234.34 is: 9,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.15 : 18,219.47 = 7,234.34 : x
  2. Step 2: Convert to fraction form
    13,202.15/18,219.47 = 7,234.34/x
  3. Step 3: Cross multiply
    13,202.15x = 18,219.47 × 7,234.34
  4. Step 4: Simplify right side
    13,202.15x = 131,805,713.33
  5. Step 5: Solve for x
    x = 131,805,713.33/13,202.15
  6. Step 6: Final answer
    x = 9,983.66

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Double scale
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Similar ratio
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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.