Home / 18,125.79-27,194.85-5,648.64

Finding the Fourth Proportional to 18,125.79, 27,194.85 and 5,648.64

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Solution

The fourth proportional to 18,125.79, 27,194.85 and 5,648.64 is: 8,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.79 : 27,194.85 = 5,648.64 : x
  2. Step 2: Convert to fraction form
    18,125.79/27,194.85 = 5,648.64/x
  3. Step 3: Cross multiply
    18,125.79x = 27,194.85 × 5,648.64
  4. Step 4: Simplify right side
    18,125.79x = 153,613,917.50
  5. Step 5: Solve for x
    x = 153,613,917.50/18,125.79
  6. Step 6: Final answer
    x = 8,474.88

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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.