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Finding the Fourth Proportional to 36,806.61, 55,209.78 and 9,104.61

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Solution

The fourth proportional to 36,806.61, 55,209.78 and 9,104.61 is: 13,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,806.61 : 55,209.78 = 9,104.61 : x
  2. Step 2: Convert to fraction form
    36,806.61/55,209.78 = 9,104.61/x
  3. Step 3: Cross multiply
    36,806.61x = 55,209.78 × 9,104.61
  4. Step 4: Simplify right side
    36,806.61x = 502,663,515.09
  5. Step 5: Solve for x
    x = 502,663,515.09/36,806.61
  6. Step 6: Final answer
    x = 13,656.88

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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.