Home / 18,866.88-28,273.50-13,897.44

Finding the Fourth Proportional to 18,866.88, 28,273.50 and 13,897.44

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Solution

The fourth proportional to 18,866.88, 28,273.50 and 13,897.44 is: 20,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.88 : 28,273.50 = 13,897.44 : x
  2. Step 2: Convert to fraction form
    18,866.88/28,273.50 = 13,897.44/x
  3. Step 3: Cross multiply
    18,866.88x = 28,273.50 × 13,897.44
  4. Step 4: Simplify right side
    18,866.88x = 392,929,269.84
  5. Step 5: Solve for x
    x = 392,929,269.84/18,866.88
  6. Step 6: Final answer
    x = 20,826.40

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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.