Home / 14,742.12-20,351.98-11,839.28

Finding the Fourth Proportional to 14,742.12, 20,351.98 and 11,839.28

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Solution

The fourth proportional to 14,742.12, 20,351.98 and 11,839.28 is: 16,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.12 : 20,351.98 = 11,839.28 : x
  2. Step 2: Convert to fraction form
    14,742.12/20,351.98 = 11,839.28/x
  3. Step 3: Cross multiply
    14,742.12x = 20,351.98 × 11,839.28
  4. Step 4: Simplify right side
    14,742.12x = 240,952,789.77
  5. Step 5: Solve for x
    x = 240,952,789.77/14,742.12
  6. Step 6: Final answer
    x = 16,344.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.