Home / 18,619.02-27,937.64-8,759.30

Finding the Fourth Proportional to 18,619.02, 27,937.64 and 8,759.30

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Solution

The fourth proportional to 18,619.02, 27,937.64 and 8,759.30 is: 13,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.02 : 27,937.64 = 8,759.30 : x
  2. Step 2: Convert to fraction form
    18,619.02/27,937.64 = 8,759.30/x
  3. Step 3: Cross multiply
    18,619.02x = 27,937.64 × 8,759.30
  4. Step 4: Simplify right side
    18,619.02x = 244,714,170.05
  5. Step 5: Solve for x
    x = 244,714,170.05/18,619.02
  6. Step 6: Final answer
    x = 13,143.24

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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.