Home / 13,757.40-20,633.70-4,987.80

Finding the Fourth Proportional to 13,757.40, 20,633.70 and 4,987.80

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Solution

The fourth proportional to 13,757.40, 20,633.70 and 4,987.80 is: 7,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.40 : 20,633.70 = 4,987.80 : x
  2. Step 2: Convert to fraction form
    13,757.40/20,633.70 = 4,987.80/x
  3. Step 3: Cross multiply
    13,757.40x = 20,633.70 × 4,987.80
  4. Step 4: Simplify right side
    13,757.40x = 102,916,768.86
  5. Step 5: Solve for x
    x = 102,916,768.86/13,757.40
  6. Step 6: Final answer
    x = 7,480.83

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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.