Home / 11,942.28-17,929.68-8,235.36

Finding the Fourth Proportional to 11,942.28, 17,929.68 and 8,235.36

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Solution

The fourth proportional to 11,942.28, 17,929.68 and 8,235.36 is: 12,364.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.28 : 17,929.68 = 8,235.36 : x
  2. Step 2: Convert to fraction form
    11,942.28/17,929.68 = 8,235.36/x
  3. Step 3: Cross multiply
    11,942.28x = 17,929.68 × 8,235.36
  4. Step 4: Simplify right side
    11,942.28x = 147,657,369.48
  5. Step 5: Solve for x
    x = 147,657,369.48/11,942.28
  6. Step 6: Final answer
    x = 12,364.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.