Home / 18,976.19-28,461.61-11,934.74

Finding the Fourth Proportional to 18,976.19, 28,461.61 and 11,934.74

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Solution

The fourth proportional to 18,976.19, 28,461.61 and 11,934.74 is: 17,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.19 : 28,461.61 = 11,934.74 : x
  2. Step 2: Convert to fraction form
    18,976.19/28,461.61 = 11,934.74/x
  3. Step 3: Cross multiply
    18,976.19x = 28,461.61 × 11,934.74
  4. Step 4: Simplify right side
    18,976.19x = 339,681,915.33
  5. Step 5: Solve for x
    x = 339,681,915.33/18,976.19
  6. Step 6: Final answer
    x = 17,900.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.