Home / 26,169.60-39,258.80-12,123.89

Finding the Fourth Proportional to 26,169.60, 39,258.80 and 12,123.89

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Solution

The fourth proportional to 26,169.60, 39,258.80 and 12,123.89 is: 18,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,169.60 : 39,258.80 = 12,123.89 : x
  2. Step 2: Convert to fraction form
    26,169.60/39,258.80 = 12,123.89/x
  3. Step 3: Cross multiply
    26,169.60x = 39,258.80 × 12,123.89
  4. Step 4: Simplify right side
    26,169.60x = 475,969,372.73
  5. Step 5: Solve for x
    x = 475,969,372.73/26,169.60
  6. Step 6: Final answer
    x = 18,187.87

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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.