Home / 18,613.50-25,688.82-11,059.89

Finding the Fourth Proportional to 18,613.50, 25,688.82 and 11,059.89

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Solution

The fourth proportional to 18,613.50, 25,688.82 and 11,059.89 is: 15,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.50 : 25,688.82 = 11,059.89 : x
  2. Step 2: Convert to fraction form
    18,613.50/25,688.82 = 11,059.89/x
  3. Step 3: Cross multiply
    18,613.50x = 25,688.82 × 11,059.89
  4. Step 4: Simplify right side
    18,613.50x = 284,115,523.43
  5. Step 5: Solve for x
    x = 284,115,523.43/18,613.50
  6. Step 6: Final answer
    x = 15,263.95

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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.