Home / 16,638.64-22,929.63-11,914.72

Finding the Fourth Proportional to 16,638.64, 22,929.63 and 11,914.72

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Solution

The fourth proportional to 16,638.64, 22,929.63 and 11,914.72 is: 16,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.64 : 22,929.63 = 11,914.72 : x
  2. Step 2: Convert to fraction form
    16,638.64/22,929.63 = 11,914.72/x
  3. Step 3: Cross multiply
    16,638.64x = 22,929.63 × 11,914.72
  4. Step 4: Simplify right side
    16,638.64x = 273,200,121.15
  5. Step 5: Solve for x
    x = 273,200,121.15/16,638.64
  6. Step 6: Final answer
    x = 16,419.62

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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.