Home / 12,144.99-16,760.61-6,840.12

Finding the Fourth Proportional to 12,144.99, 16,760.61 and 6,840.12

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Solution

The fourth proportional to 12,144.99, 16,760.61 and 6,840.12 is: 9,439.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.99 : 16,760.61 = 6,840.12 : x
  2. Step 2: Convert to fraction form
    12,144.99/16,760.61 = 6,840.12/x
  3. Step 3: Cross multiply
    12,144.99x = 16,760.61 × 6,840.12
  4. Step 4: Simplify right side
    12,144.99x = 114,644,583.67
  5. Step 5: Solve for x
    x = 114,644,583.67/12,144.99
  6. Step 6: Final answer
    x = 9,439.66

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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.