Home / 11,239.34-16,842.92-8,254.35

Finding the Fourth Proportional to 11,239.34, 16,842.92 and 8,254.35

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Solution

The fourth proportional to 11,239.34, 16,842.92 and 8,254.35 is: 12,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.34 : 16,842.92 = 8,254.35 : x
  2. Step 2: Convert to fraction form
    11,239.34/16,842.92 = 8,254.35/x
  3. Step 3: Cross multiply
    11,239.34x = 16,842.92 × 8,254.35
  4. Step 4: Simplify right side
    11,239.34x = 139,027,315.43
  5. Step 5: Solve for x
    x = 139,027,315.43/11,239.34
  6. Step 6: Final answer
    x = 12,369.71

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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.