Home / 12,440.25-17,200.08-11,889.45

Finding the Fourth Proportional to 12,440.25, 17,200.08 and 11,889.45

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Solution

The fourth proportional to 12,440.25, 17,200.08 and 11,889.45 is: 16,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.25 : 17,200.08 = 11,889.45 : x
  2. Step 2: Convert to fraction form
    12,440.25/17,200.08 = 11,889.45/x
  3. Step 3: Cross multiply
    12,440.25x = 17,200.08 × 11,889.45
  4. Step 4: Simplify right side
    12,440.25x = 204,499,491.16
  5. Step 5: Solve for x
    x = 204,499,491.16/12,440.25
  6. Step 6: Final answer
    x = 16,438.54

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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.