Home / 8,251.48-12,378.33-2,408.05

Finding the Fourth Proportional to 8,251.48, 12,378.33 and 2,408.05

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Solution

The fourth proportional to 8,251.48, 12,378.33 and 2,408.05 is: 3,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.48 : 12,378.33 = 2,408.05 : x
  2. Step 2: Convert to fraction form
    8,251.48/12,378.33 = 2,408.05/x
  3. Step 3: Cross multiply
    8,251.48x = 12,378.33 × 2,408.05
  4. Step 4: Simplify right side
    8,251.48x = 29,807,637.56
  5. Step 5: Solve for x
    x = 29,807,637.56/8,251.48
  6. Step 6: Final answer
    x = 3,612.40

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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.