Home / 18,397.83-27,596.76-12,861.90

Finding the Fourth Proportional to 18,397.83, 27,596.76 and 12,861.90

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Solution

The fourth proportional to 18,397.83, 27,596.76 and 12,861.90 is: 19,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.83 : 27,596.76 = 12,861.90 : x
  2. Step 2: Convert to fraction form
    18,397.83/27,596.76 = 12,861.90/x
  3. Step 3: Cross multiply
    18,397.83x = 27,596.76 × 12,861.90
  4. Step 4: Simplify right side
    18,397.83x = 354,946,767.44
  5. Step 5: Solve for x
    x = 354,946,767.44/18,397.83
  6. Step 6: Final answer
    x = 19,292.86

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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.