Home / 18,660.31-27,997.76-6,970.80

Finding the Fourth Proportional to 18,660.31, 27,997.76 and 6,970.80

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Solution

The fourth proportional to 18,660.31, 27,997.76 and 6,970.80 is: 10,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.31 : 27,997.76 = 6,970.80 : x
  2. Step 2: Convert to fraction form
    18,660.31/27,997.76 = 6,970.80/x
  3. Step 3: Cross multiply
    18,660.31x = 27,997.76 × 6,970.80
  4. Step 4: Simplify right side
    18,660.31x = 195,166,785.41
  5. Step 5: Solve for x
    x = 195,166,785.41/18,660.31
  6. Step 6: Final answer
    x = 10,458.93

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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.