Home / 12,201.60-16,838.10-6,896.40

Finding the Fourth Proportional to 12,201.60, 16,838.10 and 6,896.40

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Solution

The fourth proportional to 12,201.60, 16,838.10 and 6,896.40 is: 9,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.60 : 16,838.10 = 6,896.40 : x
  2. Step 2: Convert to fraction form
    12,201.60/16,838.10 = 6,896.40/x
  3. Step 3: Cross multiply
    12,201.60x = 16,838.10 × 6,896.40
  4. Step 4: Simplify right side
    12,201.60x = 116,122,272.84
  5. Step 5: Solve for x
    x = 116,122,272.84/12,201.60
  6. Step 6: Final answer
    x = 9,516.97

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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.