Home / 8,408.48-12,614.27-3,478.51

Finding the Fourth Proportional to 8,408.48, 12,614.27 and 3,478.51

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Solution

The fourth proportional to 8,408.48, 12,614.27 and 3,478.51 is: 5,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.48 : 12,614.27 = 3,478.51 : x
  2. Step 2: Convert to fraction form
    8,408.48/12,614.27 = 3,478.51/x
  3. Step 3: Cross multiply
    8,408.48x = 12,614.27 × 3,478.51
  4. Step 4: Simplify right side
    8,408.48x = 43,878,815.41
  5. Step 5: Solve for x
    x = 43,878,815.41/8,408.48
  6. Step 6: Final answer
    x = 5,218.40

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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.