Home / 11,911.60-16,439.02-6,608.13

Finding the Fourth Proportional to 11,911.60, 16,439.02 and 6,608.13

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Solution

The fourth proportional to 11,911.60, 16,439.02 and 6,608.13 is: 9,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.60 : 16,439.02 = 6,608.13 : x
  2. Step 2: Convert to fraction form
    11,911.60/16,439.02 = 6,608.13/x
  3. Step 3: Cross multiply
    11,911.60x = 16,439.02 × 6,608.13
  4. Step 4: Simplify right side
    11,911.60x = 108,631,181.23
  5. Step 5: Solve for x
    x = 108,631,181.23/11,911.60
  6. Step 6: Final answer
    x = 9,119.78

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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.