Home / 18,868.75-26,056.70-12,166.41

Finding the Fourth Proportional to 18,868.75, 26,056.70 and 12,166.41

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Solution

The fourth proportional to 18,868.75, 26,056.70 and 12,166.41 is: 16,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.75 : 26,056.70 = 12,166.41 : x
  2. Step 2: Convert to fraction form
    18,868.75/26,056.70 = 12,166.41/x
  3. Step 3: Cross multiply
    18,868.75x = 26,056.70 × 12,166.41
  4. Step 4: Simplify right side
    18,868.75x = 317,016,495.45
  5. Step 5: Solve for x
    x = 317,016,495.45/18,868.75
  6. Step 6: Final answer
    x = 16,801.14

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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.