Home / 16,216.92-22,379.05-9,143.35

Finding the Fourth Proportional to 16,216.92, 22,379.05 and 9,143.35

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Solution

The fourth proportional to 16,216.92, 22,379.05 and 9,143.35 is: 12,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,216.92 : 22,379.05 = 9,143.35 : x
  2. Step 2: Convert to fraction form
    16,216.92/22,379.05 = 9,143.35/x
  3. Step 3: Cross multiply
    16,216.92x = 22,379.05 × 9,143.35
  4. Step 4: Simplify right side
    16,216.92x = 204,619,486.82
  5. Step 5: Solve for x
    x = 204,619,486.82/16,216.92
  6. Step 6: Final answer
    x = 12,617.65

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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.