Home / 11,912.58-16,438.82-6,607.35

Finding the Fourth Proportional to 11,912.58, 16,438.82 and 6,607.35

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Solution

The fourth proportional to 11,912.58, 16,438.82 and 6,607.35 is: 9,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.58 : 16,438.82 = 6,607.35 : x
  2. Step 2: Convert to fraction form
    11,912.58/16,438.82 = 6,607.35/x
  3. Step 3: Cross multiply
    11,912.58x = 16,438.82 × 6,607.35
  4. Step 4: Simplify right side
    11,912.58x = 108,617,004.29
  5. Step 5: Solve for x
    x = 108,617,004.29/11,912.58
  6. Step 6: Final answer
    x = 9,117.84

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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.