Home / 18,299.04-27,456.56-7,917.60

Finding the Fourth Proportional to 18,299.04, 27,456.56 and 7,917.60

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Solution

The fourth proportional to 18,299.04, 27,456.56 and 7,917.60 is: 11,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.04 : 27,456.56 = 7,917.60 : x
  2. Step 2: Convert to fraction form
    18,299.04/27,456.56 = 7,917.60/x
  3. Step 3: Cross multiply
    18,299.04x = 27,456.56 × 7,917.60
  4. Step 4: Simplify right side
    18,299.04x = 217,390,059.46
  5. Step 5: Solve for x
    x = 217,390,059.46/18,299.04
  6. Step 6: Final answer
    x = 11,879.86

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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.