Home / 11,910.32-16,439.45-7,431.42

Finding the Fourth Proportional to 11,910.32, 16,439.45 and 7,431.42

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Solution

The fourth proportional to 11,910.32, 16,439.45 and 7,431.42 is: 10,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.32 : 16,439.45 = 7,431.42 : x
  2. Step 2: Convert to fraction form
    11,910.32/16,439.45 = 7,431.42/x
  3. Step 3: Cross multiply
    11,910.32x = 16,439.45 × 7,431.42
  4. Step 4: Simplify right side
    11,910.32x = 122,168,420.36
  5. Step 5: Solve for x
    x = 122,168,420.36/11,910.32
  6. Step 6: Final answer
    x = 10,257.36

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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.