Home / 13,660.86-20,490.37-4,896.06

Finding the Fourth Proportional to 13,660.86, 20,490.37 and 4,896.06

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Solution

The fourth proportional to 13,660.86, 20,490.37 and 4,896.06 is: 7,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.86 : 20,490.37 = 4,896.06 : x
  2. Step 2: Convert to fraction form
    13,660.86/20,490.37 = 4,896.06/x
  3. Step 3: Cross multiply
    13,660.86x = 20,490.37 × 4,896.06
  4. Step 4: Simplify right side
    13,660.86x = 100,321,954.01
  5. Step 5: Solve for x
    x = 100,321,954.01/13,660.86
  6. Step 6: Final answer
    x = 7,343.75

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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.