Home / 13,839.26-20,742.48-7,983.77

Finding the Fourth Proportional to 13,839.26, 20,742.48 and 7,983.77

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Solution

The fourth proportional to 13,839.26, 20,742.48 and 7,983.77 is: 11,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.26 : 20,742.48 = 7,983.77 : x
  2. Step 2: Convert to fraction form
    13,839.26/20,742.48 = 7,983.77/x
  3. Step 3: Cross multiply
    13,839.26x = 20,742.48 × 7,983.77
  4. Step 4: Simplify right side
    13,839.26x = 165,603,085.84
  5. Step 5: Solve for x
    x = 165,603,085.84/13,839.26
  6. Step 6: Final answer
    x = 11,966.19

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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.