Home / 13,939.34-20,909.07-4,711.82

Finding the Fourth Proportional to 13,939.34, 20,909.07 and 4,711.82

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Solution

The fourth proportional to 13,939.34, 20,909.07 and 4,711.82 is: 7,067.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.34 : 20,909.07 = 4,711.82 : x
  2. Step 2: Convert to fraction form
    13,939.34/20,909.07 = 4,711.82/x
  3. Step 3: Cross multiply
    13,939.34x = 20,909.07 × 4,711.82
  4. Step 4: Simplify right side
    13,939.34x = 98,519,774.21
  5. Step 5: Solve for x
    x = 98,519,774.21/13,939.34
  6. Step 6: Final answer
    x = 7,067.75

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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.