Home / 16,421.94-22,662.33-9,348.39

Finding the Fourth Proportional to 16,421.94, 22,662.33 and 9,348.39

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Solution

The fourth proportional to 16,421.94, 22,662.33 and 9,348.39 is: 12,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,421.94 : 22,662.33 = 9,348.39 : x
  2. Step 2: Convert to fraction form
    16,421.94/22,662.33 = 9,348.39/x
  3. Step 3: Cross multiply
    16,421.94x = 22,662.33 × 9,348.39
  4. Step 4: Simplify right side
    16,421.94x = 211,856,299.15
  5. Step 5: Solve for x
    x = 211,856,299.15/16,421.94
  6. Step 6: Final answer
    x = 12,900.81

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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.