Home / 18,501.48-27,725.76-7,968.78

Finding the Fourth Proportional to 18,501.48, 27,725.76 and 7,968.78

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Solution

The fourth proportional to 18,501.48, 27,725.76 and 7,968.78 is: 11,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.48 : 27,725.76 = 7,968.78 : x
  2. Step 2: Convert to fraction form
    18,501.48/27,725.76 = 7,968.78/x
  3. Step 3: Cross multiply
    18,501.48x = 27,725.76 × 7,968.78
  4. Step 4: Simplify right side
    18,501.48x = 220,940,481.77
  5. Step 5: Solve for x
    x = 220,940,481.77/18,501.48
  6. Step 6: Final answer
    x = 11,941.77

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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.