Home / 18,628.50-25,694.31-12,253.08

Finding the Fourth Proportional to 18,628.50, 25,694.31 and 12,253.08

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Solution

The fourth proportional to 18,628.50, 25,694.31 and 12,253.08 is: 16,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.50 : 25,694.31 = 12,253.08 : x
  2. Step 2: Convert to fraction form
    18,628.50/25,694.31 = 12,253.08/x
  3. Step 3: Cross multiply
    18,628.50x = 25,694.31 × 12,253.08
  4. Step 4: Simplify right side
    18,628.50x = 314,834,435.97
  5. Step 5: Solve for x
    x = 314,834,435.97/18,628.50
  6. Step 6: Final answer
    x = 16,900.69

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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.