Home / 12,861.09-19,294.61-4,095.95

Finding the Fourth Proportional to 12,861.09, 19,294.61 and 4,095.95

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Solution

The fourth proportional to 12,861.09, 19,294.61 and 4,095.95 is: 6,144.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.09 : 19,294.61 = 4,095.95 : x
  2. Step 2: Convert to fraction form
    12,861.09/19,294.61 = 4,095.95/x
  3. Step 3: Cross multiply
    12,861.09x = 19,294.61 × 4,095.95
  4. Step 4: Simplify right side
    12,861.09x = 79,029,640.88
  5. Step 5: Solve for x
    x = 79,029,640.88/12,861.09
  6. Step 6: Final answer
    x = 6,144.86

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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.