Home / 15,067.20-20,800.56-11,702.48

Finding the Fourth Proportional to 15,067.20, 20,800.56 and 11,702.48

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Solution

The fourth proportional to 15,067.20, 20,800.56 and 11,702.48 is: 16,155.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.20 : 20,800.56 = 11,702.48 : x
  2. Step 2: Convert to fraction form
    15,067.20/20,800.56 = 11,702.48/x
  3. Step 3: Cross multiply
    15,067.20x = 20,800.56 × 11,702.48
  4. Step 4: Simplify right side
    15,067.20x = 243,418,137.39
  5. Step 5: Solve for x
    x = 243,418,137.39/15,067.20
  6. Step 6: Final answer
    x = 16,155.50

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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.