Home / 12,107.92-18,137.58-8,827.96

Finding the Fourth Proportional to 12,107.92, 18,137.58 and 8,827.96

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Solution

The fourth proportional to 12,107.92, 18,137.58 and 8,827.96 is: 13,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.92 : 18,137.58 = 8,827.96 : x
  2. Step 2: Convert to fraction form
    12,107.92/18,137.58 = 8,827.96/x
  3. Step 3: Cross multiply
    12,107.92x = 18,137.58 × 8,827.96
  4. Step 4: Simplify right side
    12,107.92x = 160,117,830.74
  5. Step 5: Solve for x
    x = 160,117,830.74/12,107.92
  6. Step 6: Final answer
    x = 13,224.22

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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.