Home / 8,249.60-11,384.48-4,712.80

Finding the Fourth Proportional to 8,249.60, 11,384.48 and 4,712.80

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Solution

The fourth proportional to 8,249.60, 11,384.48 and 4,712.80 is: 6,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.60 : 11,384.48 = 4,712.80 : x
  2. Step 2: Convert to fraction form
    8,249.60/11,384.48 = 4,712.80/x
  3. Step 3: Cross multiply
    8,249.60x = 11,384.48 × 4,712.80
  4. Step 4: Simplify right side
    8,249.60x = 53,652,777.34
  5. Step 5: Solve for x
    x = 53,652,777.34/8,249.60
  6. Step 6: Final answer
    x = 6,503.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.