Home / 26,129.88-39,194.40-6,408.57

Finding the Fourth Proportional to 26,129.88, 39,194.40 and 6,408.57

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Solution

The fourth proportional to 26,129.88, 39,194.40 and 6,408.57 is: 9,612.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,129.88 : 39,194.40 = 6,408.57 : x
  2. Step 2: Convert to fraction form
    26,129.88/39,194.40 = 6,408.57/x
  3. Step 3: Cross multiply
    26,129.88x = 39,194.40 × 6,408.57
  4. Step 4: Simplify right side
    26,129.88x = 251,180,056.01
  5. Step 5: Solve for x
    x = 251,180,056.01/26,129.88
  6. Step 6: Final answer
    x = 9,612.75

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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.