Home / 11,913.45-16,439.82-6,608.16

Finding the Fourth Proportional to 11,913.45, 16,439.82 and 6,608.16

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Solution

The fourth proportional to 11,913.45, 16,439.82 and 6,608.16 is: 9,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.45 : 16,439.82 = 6,608.16 : x
  2. Step 2: Convert to fraction form
    11,913.45/16,439.82 = 6,608.16/x
  3. Step 3: Cross multiply
    11,913.45x = 16,439.82 × 6,608.16
  4. Step 4: Simplify right side
    11,913.45x = 108,636,878.73
  5. Step 5: Solve for x
    x = 108,636,878.73/11,913.45
  6. Step 6: Final answer
    x = 9,118.85

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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.