Home / 16,508.16-22,788-12,309.12

Finding the Fourth Proportional to 16,508.16, 22,788 and 12,309.12

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Solution

The fourth proportional to 16,508.16, 22,788 and 12,309.12 is: 16,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,508.16 : 22,788 = 12,309.12 : x
  2. Step 2: Convert to fraction form
    16,508.16/22,788 = 12,309.12/x
  3. Step 3: Cross multiply
    16,508.16x = 22,788 × 12,309.12
  4. Step 4: Simplify right side
    16,508.16x = 280,500,226.56
  5. Step 5: Solve for x
    x = 280,500,226.56/16,508.16
  6. Step 6: Final answer
    x = 16,991.61

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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.