Home / 12,459.12-17,173.20-9,102.48

Finding the Fourth Proportional to 12,459.12, 17,173.20 and 9,102.48

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Solution

The fourth proportional to 12,459.12, 17,173.20 and 9,102.48 is: 12,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.12 : 17,173.20 = 9,102.48 : x
  2. Step 2: Convert to fraction form
    12,459.12/17,173.20 = 9,102.48/x
  3. Step 3: Cross multiply
    12,459.12x = 17,173.20 × 9,102.48
  4. Step 4: Simplify right side
    12,459.12x = 156,318,709.54
  5. Step 5: Solve for x
    x = 156,318,709.54/12,459.12
  6. Step 6: Final answer
    x = 12,546.53

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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.