Home / 18,903.70-26,123.07-14,179.78

Finding the Fourth Proportional to 18,903.70, 26,123.07 and 14,179.78

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Solution

The fourth proportional to 18,903.70, 26,123.07 and 14,179.78 is: 19,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.70 : 26,123.07 = 14,179.78 : x
  2. Step 2: Convert to fraction form
    18,903.70/26,123.07 = 14,179.78/x
  3. Step 3: Cross multiply
    18,903.70x = 26,123.07 × 14,179.78
  4. Step 4: Simplify right side
    18,903.70x = 370,419,385.52
  5. Step 5: Solve for x
    x = 370,419,385.52/18,903.70
  6. Step 6: Final answer
    x = 19,595.07

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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.