Home / 14,080.24-21,120.88-3,691.68

Finding the Fourth Proportional to 14,080.24, 21,120.88 and 3,691.68

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Solution

The fourth proportional to 14,080.24, 21,120.88 and 3,691.68 is: 5,537.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.24 : 21,120.88 = 3,691.68 : x
  2. Step 2: Convert to fraction form
    14,080.24/21,120.88 = 3,691.68/x
  3. Step 3: Cross multiply
    14,080.24x = 21,120.88 × 3,691.68
  4. Step 4: Simplify right side
    14,080.24x = 77,971,530.28
  5. Step 5: Solve for x
    x = 77,971,530.28/14,080.24
  6. Step 6: Final answer
    x = 5,537.66

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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.