Home / 12,257.31-18,348.78-11,087.81

Finding the Fourth Proportional to 12,257.31, 18,348.78 and 11,087.81

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Solution

The fourth proportional to 12,257.31, 18,348.78 and 11,087.81 is: 16,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.31 : 18,348.78 = 11,087.81 : x
  2. Step 2: Convert to fraction form
    12,257.31/18,348.78 = 11,087.81/x
  3. Step 3: Cross multiply
    12,257.31x = 18,348.78 × 11,087.81
  4. Step 4: Simplify right side
    12,257.31x = 203,447,694.63
  5. Step 5: Solve for x
    x = 203,447,694.63/12,257.31
  6. Step 6: Final answer
    x = 16,598.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.