Home / 19,067.20-28,602.70-7,977.36

Finding the Fourth Proportional to 19,067.20, 28,602.70 and 7,977.36

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Solution

The fourth proportional to 19,067.20, 28,602.70 and 7,977.36 is: 11,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067.20 : 28,602.70 = 7,977.36 : x
  2. Step 2: Convert to fraction form
    19,067.20/28,602.70 = 7,977.36/x
  3. Step 3: Cross multiply
    19,067.20x = 28,602.70 × 7,977.36
  4. Step 4: Simplify right side
    19,067.20x = 228,174,034.87
  5. Step 5: Solve for x
    x = 228,174,034.87/19,067.20
  6. Step 6: Final answer
    x = 11,966.83

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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.