Home / 14,580.05-20,119.89-8,613.64

Finding the Fourth Proportional to 14,580.05, 20,119.89 and 8,613.64

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Solution

The fourth proportional to 14,580.05, 20,119.89 and 8,613.64 is: 11,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.05 : 20,119.89 = 8,613.64 : x
  2. Step 2: Convert to fraction form
    14,580.05/20,119.89 = 8,613.64/x
  3. Step 3: Cross multiply
    14,580.05x = 20,119.89 × 8,613.64
  4. Step 4: Simplify right side
    14,580.05x = 173,305,489.30
  5. Step 5: Solve for x
    x = 173,305,489.30/14,580.05
  6. Step 6: Final answer
    x = 11,886.48

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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.