Home / 18,751.05-25,876.47-10,253.21

Finding the Fourth Proportional to 18,751.05, 25,876.47 and 10,253.21

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Solution

The fourth proportional to 18,751.05, 25,876.47 and 10,253.21 is: 14,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.05 : 25,876.47 = 10,253.21 : x
  2. Step 2: Convert to fraction form
    18,751.05/25,876.47 = 10,253.21/x
  3. Step 3: Cross multiply
    18,751.05x = 25,876.47 × 10,253.21
  4. Step 4: Simplify right side
    18,751.05x = 265,316,880.97
  5. Step 5: Solve for x
    x = 265,316,880.97/18,751.05
  6. Step 6: Final answer
    x = 14,149.44

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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.