Home / 8,328.48-11,505.12-6,660.96

Finding the Fourth Proportional to 8,328.48, 11,505.12 and 6,660.96

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Solution

The fourth proportional to 8,328.48, 11,505.12 and 6,660.96 is: 9,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.48 : 11,505.12 = 6,660.96 : x
  2. Step 2: Convert to fraction form
    8,328.48/11,505.12 = 6,660.96/x
  3. Step 3: Cross multiply
    8,328.48x = 11,505.12 × 6,660.96
  4. Step 4: Simplify right side
    8,328.48x = 76,635,144.12
  5. Step 5: Solve for x
    x = 76,635,144.12/8,328.48
  6. Step 6: Final answer
    x = 9,201.58

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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.