Home / 18,289.39-27,428.66-7,759.27

Finding the Fourth Proportional to 18,289.39, 27,428.66 and 7,759.27

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Solution

The fourth proportional to 18,289.39, 27,428.66 and 7,759.27 is: 11,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.39 : 27,428.66 = 7,759.27 : x
  2. Step 2: Convert to fraction form
    18,289.39/27,428.66 = 7,759.27/x
  3. Step 3: Cross multiply
    18,289.39x = 27,428.66 × 7,759.27
  4. Step 4: Simplify right side
    18,289.39x = 212,826,398.08
  5. Step 5: Solve for x
    x = 212,826,398.08/18,289.39
  6. Step 6: Final answer
    x = 11,636.60

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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.