Home / 12,246.42-16,908.18-9,408.72

Finding the Fourth Proportional to 12,246.42, 16,908.18 and 9,408.72

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Solution

The fourth proportional to 12,246.42, 16,908.18 and 9,408.72 is: 12,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.42 : 16,908.18 = 9,408.72 : x
  2. Step 2: Convert to fraction form
    12,246.42/16,908.18 = 9,408.72/x
  3. Step 3: Cross multiply
    12,246.42x = 16,908.18 × 9,408.72
  4. Step 4: Simplify right side
    12,246.42x = 159,084,331.33
  5. Step 5: Solve for x
    x = 159,084,331.33/12,246.42
  6. Step 6: Final answer
    x = 12,990.27

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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.