Home / 12,342.06-18,418.19-11,029.86

Finding the Fourth Proportional to 12,342.06, 18,418.19 and 11,029.86

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Solution

The fourth proportional to 12,342.06, 18,418.19 and 11,029.86 is: 16,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.06 : 18,418.19 = 11,029.86 : x
  2. Step 2: Convert to fraction form
    12,342.06/18,418.19 = 11,029.86/x
  3. Step 3: Cross multiply
    12,342.06x = 18,418.19 × 11,029.86
  4. Step 4: Simplify right side
    12,342.06x = 203,150,002.00
  5. Step 5: Solve for x
    x = 203,150,002.00/12,342.06
  6. Step 6: Final answer
    x = 16,459.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.