Home / 18,425.07-25,399.83-12,751.17

Finding the Fourth Proportional to 18,425.07, 25,399.83 and 12,751.17

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Solution

The fourth proportional to 18,425.07, 25,399.83 and 12,751.17 is: 17,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.07 : 25,399.83 = 12,751.17 : x
  2. Step 2: Convert to fraction form
    18,425.07/25,399.83 = 12,751.17/x
  3. Step 3: Cross multiply
    18,425.07x = 25,399.83 × 12,751.17
  4. Step 4: Simplify right side
    18,425.07x = 323,877,550.30
  5. Step 5: Solve for x
    x = 323,877,550.30/18,425.07
  6. Step 6: Final answer
    x = 17,578.09

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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.