Home / 11,809.40-17,699.70-5,228.60

Finding the Fourth Proportional to 11,809.40, 17,699.70 and 5,228.60

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Solution

The fourth proportional to 11,809.40, 17,699.70 and 5,228.60 is: 7,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.40 : 17,699.70 = 5,228.60 : x
  2. Step 2: Convert to fraction form
    11,809.40/17,699.70 = 5,228.60/x
  3. Step 3: Cross multiply
    11,809.40x = 17,699.70 × 5,228.60
  4. Step 4: Simplify right side
    11,809.40x = 92,544,651.42
  5. Step 5: Solve for x
    x = 92,544,651.42/11,809.40
  6. Step 6: Final answer
    x = 7,836.52

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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.