Home / 18,300.38-25,256.76-11,933.78

Finding the Fourth Proportional to 18,300.38, 25,256.76 and 11,933.78

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Solution

The fourth proportional to 18,300.38, 25,256.76 and 11,933.78 is: 16,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.38 : 25,256.76 = 11,933.78 : x
  2. Step 2: Convert to fraction form
    18,300.38/25,256.76 = 11,933.78/x
  3. Step 3: Cross multiply
    18,300.38x = 25,256.76 × 11,933.78
  4. Step 4: Simplify right side
    18,300.38x = 301,408,617.35
  5. Step 5: Solve for x
    x = 301,408,617.35/18,300.38
  6. Step 6: Final answer
    x = 16,470.07

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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.