Home / 18,769.52-25,902.12-10,386

Finding the Fourth Proportional to 18,769.52, 25,902.12 and 10,386

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Solution

The fourth proportional to 18,769.52, 25,902.12 and 10,386 is: 14,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.52 : 25,902.12 = 10,386 : x
  2. Step 2: Convert to fraction form
    18,769.52/25,902.12 = 10,386/x
  3. Step 3: Cross multiply
    18,769.52x = 25,902.12 × 10,386
  4. Step 4: Simplify right side
    18,769.52x = 269,019,418.32
  5. Step 5: Solve for x
    x = 269,019,418.32/18,769.52
  6. Step 6: Final answer
    x = 14,332.78

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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.