Home / 12,650.58-18,981.95-6,806.43

Finding the Fourth Proportional to 12,650.58, 18,981.95 and 6,806.43

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Solution

The fourth proportional to 12,650.58, 18,981.95 and 6,806.43 is: 10,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.58 : 18,981.95 = 6,806.43 : x
  2. Step 2: Convert to fraction form
    12,650.58/18,981.95 = 6,806.43/x
  3. Step 3: Cross multiply
    12,650.58x = 18,981.95 × 6,806.43
  4. Step 4: Simplify right side
    12,650.58x = 129,199,279.91
  5. Step 5: Solve for x
    x = 129,199,279.91/12,650.58
  6. Step 6: Final answer
    x = 10,212.91

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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.