Home / 15,067.32-20,791.50-9,099.96

Finding the Fourth Proportional to 15,067.32, 20,791.50 and 9,099.96

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Solution

The fourth proportional to 15,067.32, 20,791.50 and 9,099.96 is: 12,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.32 : 20,791.50 = 9,099.96 : x
  2. Step 2: Convert to fraction form
    15,067.32/20,791.50 = 9,099.96/x
  3. Step 3: Cross multiply
    15,067.32x = 20,791.50 × 9,099.96
  4. Step 4: Simplify right side
    15,067.32x = 189,201,818.34
  5. Step 5: Solve for x
    x = 189,201,818.34/15,067.32
  6. Step 6: Final answer
    x = 12,557.10

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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.