Home / 18,300.88-25,257.45-11,934.28

Finding the Fourth Proportional to 18,300.88, 25,257.45 and 11,934.28

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Solution

The fourth proportional to 18,300.88, 25,257.45 and 11,934.28 is: 16,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.88 : 25,257.45 = 11,934.28 : x
  2. Step 2: Convert to fraction form
    18,300.88/25,257.45 = 11,934.28/x
  3. Step 3: Cross multiply
    18,300.88x = 25,257.45 × 11,934.28
  4. Step 4: Simplify right side
    18,300.88x = 301,429,480.39
  5. Step 5: Solve for x
    x = 301,429,480.39/18,300.88
  6. Step 6: Final answer
    x = 16,470.76

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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.