Home / 14,742.88-20,344.91-8,028.38

Finding the Fourth Proportional to 14,742.88, 20,344.91 and 8,028.38

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Solution

The fourth proportional to 14,742.88, 20,344.91 and 8,028.38 is: 11,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.88 : 20,344.91 = 8,028.38 : x
  2. Step 2: Convert to fraction form
    14,742.88/20,344.91 = 8,028.38/x
  3. Step 3: Cross multiply
    14,742.88x = 20,344.91 × 8,028.38
  4. Step 4: Simplify right side
    14,742.88x = 163,336,668.55
  5. Step 5: Solve for x
    x = 163,336,668.55/14,742.88
  6. Step 6: Final answer
    x = 11,079.02

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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.