Home / 10,103.02-13,940.10-6,121.82

Finding the Fourth Proportional to 10,103.02, 13,940.10 and 6,121.82

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Solution

The fourth proportional to 10,103.02, 13,940.10 and 6,121.82 is: 8,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103.02 : 13,940.10 = 6,121.82 : x
  2. Step 2: Convert to fraction form
    10,103.02/13,940.10 = 6,121.82/x
  3. Step 3: Cross multiply
    10,103.02x = 13,940.10 × 6,121.82
  4. Step 4: Simplify right side
    10,103.02x = 85,338,817.83
  5. Step 5: Solve for x
    x = 85,338,817.83/10,103.02
  6. Step 6: Final answer
    x = 8,446.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.