Home / 13,202.72-18,220.26-7,234.64

Finding the Fourth Proportional to 13,202.72, 18,220.26 and 7,234.64

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Solution

The fourth proportional to 13,202.72, 18,220.26 and 7,234.64 is: 9,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.72 : 18,220.26 = 7,234.64 : x
  2. Step 2: Convert to fraction form
    13,202.72/18,220.26 = 7,234.64/x
  3. Step 3: Cross multiply
    13,202.72x = 18,220.26 × 7,234.64
  4. Step 4: Simplify right side
    13,202.72x = 131,817,021.81
  5. Step 5: Solve for x
    x = 131,817,021.81/13,202.72
  6. Step 6: Final answer
    x = 9,984.08

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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.