Home / 13,849.07-20,773.65-3,988.40

Finding the Fourth Proportional to 13,849.07, 20,773.65 and 3,988.40

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Solution

The fourth proportional to 13,849.07, 20,773.65 and 3,988.40 is: 5,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.07 : 20,773.65 = 3,988.40 : x
  2. Step 2: Convert to fraction form
    13,849.07/20,773.65 = 3,988.40/x
  3. Step 3: Cross multiply
    13,849.07x = 20,773.65 × 3,988.40
  4. Step 4: Simplify right side
    13,849.07x = 82,853,625.66
  5. Step 5: Solve for x
    x = 82,853,625.66/13,849.07
  6. Step 6: Final answer
    x = 5,982.61

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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.