Home / 8,408.83-12,604.77-5,291.07

Finding the Fourth Proportional to 8,408.83, 12,604.77 and 5,291.07

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Solution

The fourth proportional to 8,408.83, 12,604.77 and 5,291.07 is: 7,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.83 : 12,604.77 = 5,291.07 : x
  2. Step 2: Convert to fraction form
    8,408.83/12,604.77 = 5,291.07/x
  3. Step 3: Cross multiply
    8,408.83x = 12,604.77 × 5,291.07
  4. Step 4: Simplify right side
    8,408.83x = 66,692,720.40
  5. Step 5: Solve for x
    x = 66,692,720.40/8,408.83
  6. Step 6: Final answer
    x = 7,931.27

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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.