Home / 11,003.40-16,505.10-6,618.60

Finding the Fourth Proportional to 11,003.40, 16,505.10 and 6,618.60

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Solution

The fourth proportional to 11,003.40, 16,505.10 and 6,618.60 is: 9,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.40 : 16,505.10 = 6,618.60 : x
  2. Step 2: Convert to fraction form
    11,003.40/16,505.10 = 6,618.60/x
  3. Step 3: Cross multiply
    11,003.40x = 16,505.10 × 6,618.60
  4. Step 4: Simplify right side
    11,003.40x = 109,240,654.86
  5. Step 5: Solve for x
    x = 109,240,654.86/11,003.40
  6. Step 6: Final answer
    x = 9,927.90

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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.