Home / 14,742.66-20,344.68-8,028.21

Finding the Fourth Proportional to 14,742.66, 20,344.68 and 8,028.21

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Solution

The fourth proportional to 14,742.66, 20,344.68 and 8,028.21 is: 11,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.66 : 20,344.68 = 8,028.21 : x
  2. Step 2: Convert to fraction form
    14,742.66/20,344.68 = 8,028.21/x
  3. Step 3: Cross multiply
    14,742.66x = 20,344.68 × 8,028.21
  4. Step 4: Simplify right side
    14,742.66x = 163,331,363.42
  5. Step 5: Solve for x
    x = 163,331,363.42/14,742.66
  6. Step 6: Final answer
    x = 11,078.83

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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.