Home / 11,912.25-16,438.98-6,607.08

Finding the Fourth Proportional to 11,912.25, 16,438.98 and 6,607.08

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Solution

The fourth proportional to 11,912.25, 16,438.98 and 6,607.08 is: 9,117.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.25 : 16,438.98 = 6,607.08 : x
  2. Step 2: Convert to fraction form
    11,912.25/16,438.98 = 6,607.08/x
  3. Step 3: Cross multiply
    11,912.25x = 16,438.98 × 6,607.08
  4. Step 4: Simplify right side
    11,912.25x = 108,613,668.37
  5. Step 5: Solve for x
    x = 108,613,668.37/11,912.25
  6. Step 6: Final answer
    x = 9,117.81

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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.