Home / 12,288.06-16,958.12-6,912.18

Finding the Fourth Proportional to 12,288.06, 16,958.12 and 6,912.18

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Solution

The fourth proportional to 12,288.06, 16,958.12 and 6,912.18 is: 9,539.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.06 : 16,958.12 = 6,912.18 : x
  2. Step 2: Convert to fraction form
    12,288.06/16,958.12 = 6,912.18/x
  3. Step 3: Cross multiply
    12,288.06x = 16,958.12 × 6,912.18
  4. Step 4: Simplify right side
    12,288.06x = 117,217,577.90
  5. Step 5: Solve for x
    x = 117,217,577.90/12,288.06
  6. Step 6: Final answer
    x = 9,539.14

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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.