Home / 26,129.49-39,193.85-6,408.20

Finding the Fourth Proportional to 26,129.49, 39,193.85 and 6,408.20

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Solution

The fourth proportional to 26,129.49, 39,193.85 and 6,408.20 is: 9,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,129.49 : 39,193.85 = 6,408.20 : x
  2. Step 2: Convert to fraction form
    26,129.49/39,193.85 = 6,408.20/x
  3. Step 3: Cross multiply
    26,129.49x = 39,193.85 × 6,408.20
  4. Step 4: Simplify right side
    26,129.49x = 251,162,029.57
  5. Step 5: Solve for x
    x = 251,162,029.57/26,129.49
  6. Step 6: Final answer
    x = 9,612.21

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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.