Home / 18,707.44-25,816.86-10,640.88

Finding the Fourth Proportional to 18,707.44, 25,816.86 and 10,640.88

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Solution

The fourth proportional to 18,707.44, 25,816.86 and 10,640.88 is: 14,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.44 : 25,816.86 = 10,640.88 : x
  2. Step 2: Convert to fraction form
    18,707.44/25,816.86 = 10,640.88/x
  3. Step 3: Cross multiply
    18,707.44x = 25,816.86 × 10,640.88
  4. Step 4: Simplify right side
    18,707.44x = 274,714,109.24
  5. Step 5: Solve for x
    x = 274,714,109.24/18,707.44
  6. Step 6: Final answer
    x = 14,684.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.