Home / 26,246.40-39,321.60-12,364.80

Finding the Fourth Proportional to 26,246.40, 39,321.60 and 12,364.80

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Solution

The fourth proportional to 26,246.40, 39,321.60 and 12,364.80 is: 18,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,246.40 : 39,321.60 = 12,364.80 : x
  2. Step 2: Convert to fraction form
    26,246.40/39,321.60 = 12,364.80/x
  3. Step 3: Cross multiply
    26,246.40x = 39,321.60 × 12,364.80
  4. Step 4: Simplify right side
    26,246.40x = 486,203,719.68
  5. Step 5: Solve for x
    x = 486,203,719.68/26,246.40
  6. Step 6: Final answer
    x = 18,524.59

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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.