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Finding the Fourth Proportional to 18,561.69, 27,829.30 and 8,695.59

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Solution

The fourth proportional to 18,561.69, 27,829.30 and 8,695.59 is: 13,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.69 : 27,829.30 = 8,695.59 : x
  2. Step 2: Convert to fraction form
    18,561.69/27,829.30 = 8,695.59/x
  3. Step 3: Cross multiply
    18,561.69x = 27,829.30 × 8,695.59
  4. Step 4: Simplify right side
    18,561.69x = 241,992,182.79
  5. Step 5: Solve for x
    x = 241,992,182.79/18,561.69
  6. Step 6: Final answer
    x = 13,037.18

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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.