Home / 13,791.58-20,690.82-4,432.42

Finding the Fourth Proportional to 13,791.58, 20,690.82 and 4,432.42

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Solution

The fourth proportional to 13,791.58, 20,690.82 and 4,432.42 is: 6,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.58 : 20,690.82 = 4,432.42 : x
  2. Step 2: Convert to fraction form
    13,791.58/20,690.82 = 4,432.42/x
  3. Step 3: Cross multiply
    13,791.58x = 20,690.82 × 4,432.42
  4. Step 4: Simplify right side
    13,791.58x = 91,710,404.38
  5. Step 5: Solve for x
    x = 91,710,404.38/13,791.58
  6. Step 6: Final answer
    x = 6,649.74

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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.