Home / 14,579.55-20,119.20-8,613.14

Finding the Fourth Proportional to 14,579.55, 20,119.20 and 8,613.14

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Solution

The fourth proportional to 14,579.55, 20,119.20 and 8,613.14 is: 11,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.55 : 20,119.20 = 8,613.14 : x
  2. Step 2: Convert to fraction form
    14,579.55/20,119.20 = 8,613.14/x
  3. Step 3: Cross multiply
    14,579.55x = 20,119.20 × 8,613.14
  4. Step 4: Simplify right side
    14,579.55x = 173,289,486.29
  5. Step 5: Solve for x
    x = 173,289,486.29/14,579.55
  6. Step 6: Final answer
    x = 11,885.79

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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.